diff --git a/data/strings/en.ini b/data/strings/en.ini
index 6edbfd005..fcbdd6361 100644
--- a/data/strings/en.ini
+++ b/data/strings/en.ini
@@ -6,6 +6,15 @@
 title = Warning - Important
 description = You are going to enter in "Advanced Mode".
 
+[ani_controls]
+shortcut = Shortcut:
+right_click = Right-click: Show playback options
+
+[anidir_combo]
+forward = Forward
+reverse = Reverse
+ping_pong = Ping-pong
+
 [ask_for_color_profile]
 title = Color Profile
 sprite_with_profile = The sprite contains a color profile.
@@ -14,6 +23,23 @@ sprite_without_profile = The sprite doesn't contain a color profile.
 [statusbar_tips]
 all_layers_are_locked = All selected layers are locked
 layer_locked = Layer '{0}' is locked
+disable_snap_grid = Disable Snap to Grid
+frame = Frame:
+current_frame = Current Frame
+zoom_level = Zoom Level
+new_frame = New Frame
+locked_layers = There are locked layers
+no_active_layers = There is no active layer
+layer_x_is_hidden = Layer '{}' is hidden
+unmodifiable_reference_layer = Layer '{}' is reference, cannot be modified
+filter_no_unlocked_layer = No unlocked layers to apply filter
+cannot_move_bg_layer = The background layer cannot be moved
+nothing_to_move = Nothing to move
+recovery_task_using_sprite = Sprite is used by a backup/data recovery task
+non_transformable_reference_layer = Layer '{}' is reference, cannot be transformed
+sprite_locked_somewhere = The sprite is locked in other editor
+not_enough_transform_memory = Not enough memory to transform the selection
+not_enough_rotsprite_memory = Not enough memory for RotSprite
 
 [alerts]
 applying_filter = FX<<Applying effect...||&Cancel
@@ -185,6 +211,11 @@ Information
 ||&OK
 END
 
+[brightness_contrast]
+title = Brightness/Contrast
+brightness_label = Brightness:
+contrast_label = Contrast:
+
 [brush_slot_params]
 brush = Brush:
 brush_type = Type
@@ -200,6 +231,11 @@ ink_opacity = Opacity
 extras = Extras:
 shade = Shade
 pixel_perfect = Pixel-Perfect
+save_brush = Save Brush Here
+locked = Locked
+delete = Delete
+delete_all = Delete All
+saved_parameters = Saved Parameters
 
 [cel_movement_popup_menu]
 move = &Move
@@ -240,6 +276,35 @@ remap_tiles_tooltip = Matches old tiles with new tiles
 clear_tiles = Clear Tiles
 resize_tiles = Resize Tiles
 drag_and_drop_tiles = Drag And Drop Tiles
+reverse_colors = Reverse Colors
+sort_colors = Sort Colors
+gradient = Gradient
+gradient_by_hue = Gradient by Hue
+sort_by_hue = Sort by Hue
+sort_by_saturation = Sort by Saturation
+sort_by_brightness = Sort by Brightness
+sort_by_luminance = Sort by Luminance
+sort_by_red = Sort by Red
+sort_by_green = Sort by Green
+sort_by_blue = Sort by Blue
+sort_by_alpha = Sort by Alpha
+ascending = Ascending
+descending = Descending
+
+[color_popup]
+transparent_color_sel = Transparent Color Selected
+index = Index
+
+[color_wheel]
+discrete = Discrete
+no_harmonies = Without Harmonies
+complementary = Complementary
+monochromatic = Monochromatic
+analogous = Analogous
+split_complementary = Split-Complementary
+triadic = Triadic
+tetradic = Tetradic
+square = Square
 
 [commands]
 About = About
@@ -529,12 +594,19 @@ toggle_breakpoint = Toggle Breakpoint
 stacktrace = Stacktrace
 console = Console
 locals = Locals
+cancel = Cancel
 
 [document_tab_popup_menu]
 duplicate_view = Duplicate &View
 open_with_os = &Open with OS
 open_in_folder = Open in &Folder
 
+[dithering_selector]
+no_dithering = No Dithering
+old_dithering = Old Dithering+
+ordered_dithering = Ordered Dithering+
+floyd_steinberg = Floyd-Steinberg Error Diffusion Dithering
+
 [canvas_size]
 title = Canvas Size
 size = Size:
@@ -585,6 +657,63 @@ title = Color Mode
 amount = Amount:
 flatten = Merge layers
 
+[context_bar]
+center = Center
+fit_screen = Fit Screen
+back = Back
+pattern_aligned_to_src = Pattern aligned to source
+pattern_aligned_to_dest = Pattern aligned to destination
+paint_brush = Paint brush
+contiguous = Contiguous
+stop_at_grid = Stop at Grid
+refer_active_layer = Refer only active layer
+refer_visible_layer = Refer visible layer
+pixel_connectivity = Pixel Connectivity:
+select_palette_color = Select colors in the palette
+reverse_shade = Reverse Shade
+save_shade = Save Shade
+transparent_color = Transparent Color
+transparent_color_options = Transparent Color Options
+opaque = Opaque
+transparent = Transparent
+auto_adjust_layer = Adjust automatically depending on layer type
+default_display_pivot = Display pivot by default
+fast_rotation = Fast Rotation
+rotsprite = RotSprite
+pixel_perfect = Pixel-perfect
+linear_gradient = Linear Gradient
+radial_gradient = Radial Gradiant
+drop_pixel = Drop pixels here (Enter)
+cancel_drag = Cancel drag and drop (Esc)
+auto_select_layer = Auto Select Layer
+all = All
+none = None
+select_slices = Select All Slices
+deselect_slices = Deselect Slices
+slice_props = Slice Properties
+delete_slice = Delete Slice
+discard_brush = Discard Brush (Esc)
+brush_type = Brush Type
+brush_size = Brush Size (in pixels)
+brush_angle = Brush Angle (in degrees)
+ink = Ink
+opacity = Opacity (paint intensity)
+shades = Shades
+spray_width = Spray Width
+spray_speed = Spray Speed
+rotation_pivot = Rotation Pivot
+rotation_algorithm = Rotation Algorithm
+dynamics = Dynamics
+freehand_trace_algorithm = Freehand trace algorithm
+contiguous_fill = Fill contiguous areas color
+paint_bucket_option = Extra paint bucket options
+best_fit_index = Best fit Index
+all_layers = All Layers
+current_layer = Current Layer
+first_ref_layer = First Reference Layer
+pick = Pick:
+sample = Sample:
+
 [convolution_matrix]
 reload_stock = &Reload Stock
 
@@ -647,6 +776,8 @@ cancel = &Cancel
 
 [export_sprite_sheet]
 title = Export Sprite Sheet
+save_title = Save Sprite Sheet
+save_json_title = Save JSON Data
 sprite = Sprite
 sprite_tooltip = Source of sprite samples to export in the sprite sheet
 borders = Borders
@@ -734,6 +865,7 @@ open_sprite_sheet = Open Sprite Sheet
 export = &Export
 cancel = &Cancel
 generating = Generating...
+generated = Sprite Sheet Generated
 
 [file_selector]
 go_back_button_tooltip = Go back one folder
@@ -748,15 +880,28 @@ file_name = File name:
 file_type = File type:
 pinned_folders = Pinned Folders
 recent_folders = Recent Folders
+all_formats = All formats
+all_files = All files
 
 [filters]
 selected_cels = Selected
 selected_cels_tooltip = Apply to the active selection in the timeline
 all_cels = All
 all_cels_tooltip = Apply to all cels in the sprite
+ok = &OK
+cancel = &Cancel
+preview = &Preview
+tiled = &Tiled
 
 [font_popup]
+title = Fonts
 load = Load
+empty_fonts = No system fonts were found
+
+[frame_combo]
+all_frames = All frames
+selected_frames = Selected frames
+tag = Tag:
 
 [frame_properties]
 title = Frame Properties
@@ -777,6 +922,7 @@ the given option as the default option.
 END
 reset = Reset
 advanced_options = Advanced Options
+unknown = Unknown
 
 [gif_options]
 title = GIF Options
@@ -823,6 +969,10 @@ new_version_available = New {0} v{1} available!
 [import_sprite_sheet]
 title = Import Sprite Sheet
 type = Type:
+type_horz = Horizontal Strip
+type_vert = Vertical Strip
+type_rows = By Rows
+type_cols = By Columns
 tiles = Tiles:
 x = X:
 y = Y:
@@ -832,6 +982,8 @@ padding = Padding
 horizontal_padding = Horizontal:
 vertical_padding = Vertical:
 partial_tiles = Include partial tiles at bottom/right edges
+context_bar_help = Select bounds to identify sprite frames
+layer_name = Sprite Sheet
 import = &Import
 cancel = &Cancel
 
@@ -854,6 +1006,8 @@ title = Keyboard Shortcuts
 import = &Import
 export = &Export
 reset = &Reset
+import_keyboard_sc = Import Keyboard Shortcuts
+export_keyboard_sc = Export Keyboard Shortcuts
 section_menus = Menus
 section_commands = Commands
 section_tools = Tools
@@ -868,15 +1022,105 @@ drag_angle = Angle:
 drag_angle_tooltip = Direction of the mouse to indicate an increment of the value
 drag_distance = Distance:
 drag_distance_tooltip = Number of pixels for mouse movement to increment/decrement one unit
+header_action = Action
+header_key = Key
+header_context = Context
+zoom = Zoom
+add = Add
+default_action = (Default Action)
+scroll_vertically = Scroll Vertically
+scroll_horizontally = Scroll Horizontally
+fg_color = Color: Foreground Palette Entry
+bg_color = Color: Background Palette Entry
+fg_tile = Tile: Foreground Tile Entry
+bg_tile = Tile: Background Tile Entry
+change_frame = Change Frame
+change_brush_size = Change Brush Size
+change_brush_angle = Change Brush Angle
+change_tool = Change Tool
+change_tool_same_group = Change Tool (same group)
+change_layer = Change Layer
+change_ink_type = Change Ink Type
+change_ink_opacity = Change Ink Opacity
+change_layer_opacity = Change Layer Opacity
+change_cel_opacity = Change Cel Opacity
+color_alpha = Color: Alpha
+color_hsl_hue = Color: HSL Hue
+color_hsl_saturation = Color: HSL Saturation
+color_hsl_lightness = Color: HSL Lightness
+color_hsv_hue = Color: HSV Hue
+color_hsv_saturation = Color: HSV Saturation
+color_hsv_value = Color: HSV Value
+key_context_normal = Normal
+key_context_selection = Selection
+key_context_translating_selection = Translating Selection
+key_context_scaling_selection = Scaling Selection
+key_context_rotating_selection = Rotating Selection
+key_context_move_tool = Move Tool
+key_context_freehand_tool = Freehand Tool
+key_context_shape_tool = Shape Tool
+copy_selection = Copy Selection
+snap_to_grid = Snap To Grid
+lock_axis = Lock Axis
+fine_translating = Fine Translating
+maintain_aspect_ratio = Maintain Aspect Ratio
+scale_from_center = Scale From Center
+fine_scaling = Fine Scaling
+angle_snap = Angle Snap
+add_selection = Add Selection
+subtract_selection = Subtract Selection
+intersect_selection = Intersect Selection
+auto_select_layer = Auto Select Layer
+line_from_last_point = Straight Line from Last Point
+angle_from_last_point = Angle Snap from Last Point
+move_origin = Move Origin
+square_aspect = Square Aspect
+draw_from_center = Draw From Center
+rotate_shape = Rotate Shape
+trigger_left_mouse_button = Trigger Left Mouse Button
+trigger_right_mouse_button = Trigger Right Mouse Button
 ok = &OK
 cancel = &Cancel
 
+[layer_combo]
+group = Group:
+layer = Layer:
+selected_layers = Selected layers
+visible_layers = Visible layers
+
 [layer_properties]
 title = Layer Properties
 name = Name:
 mode = Mode:
 opacity = Opacity:
 tileset_tooltip = Tileset
+normal = Normal
+darken = Darken
+multiply = Multiply
+color_burn = Color Burn
+lighten = Lighten
+screen = Screen
+color_dodge = Color Dodge
+addition = Addition
+overlay = Overlay
+soft_light = Soft Light
+hard_light = Hard Light
+difference = Difference
+exclusion = Exclusion
+subtract = Subtract
+divide = Divide
+hue = Hue
+saturation = Saturation
+color = Color
+luminosity = Luminosity
+no_layer = No Layer
+flattened = Flattened
+
+[load_palette]
+title = Load Palette
+
+[load_selection]
+title = Load Selection (.msk file)
 
 [main_menu]
 file = &File
@@ -1060,11 +1304,23 @@ help_twitter = Twitter
 help_enter_license = Enter &License
 help_about = &About
 
+[mask_by_color]
+title = Select Color
+label_color = Color:
+tolerance = Tolerance:
+preview = &Preview
+ok = &OK
+cancel = &Cancel
+
 [modify_selection]
 title = Modify Selection
 circle = Circle Brush
 square = Square Brush
 
+[new_brush]
+shortcut = Shortcut:
+context_bar_help = Select brush bounds | Right-click to cut
+
 [new_folder]
 title = New Folder
 folder_name = Folder Name:
@@ -1076,6 +1332,10 @@ name = Name:
 tileset = Tileset:
 default_new_layer_name = New Layer
 
+[news_listbox]
+more = More...
+problem_loading = Problems loading news. Please retry.
+
 [enter_license]
 title = Enter License
 default_message = If you need a license key, go to
@@ -1138,6 +1398,10 @@ default = Default (Octree)
 rgb5a3 = Table RGB 5 bits + Alpha 3 bits
 octree = Octree
 
+[open_file]
+title = Open
+loading = Loading file
+
 [open_sequence]
 title = Notice
 description = Do you want to load the following files as an animation?
@@ -1250,6 +1514,13 @@ the Shift key is pressed.
 END
 discard_brush = Discard custom brush when eyedropper is used
 right_click = Right-click:
+right_click_paint_bgcolor = Paint with background color
+right_click_pick_fgcolor = Pick foreground color
+right_click_erase = Erase
+right_click_scroll = Scroll
+right_click_rectangular_marquee = Rectangular Marquee
+right_click_lasso = Lasso
+right_click_select_layer_and_move = Select Layer and Move
 editor_selection = Selection
 auto_opaque = Adjust opaque/transparent mode automatically
 auto_opaque_tooltip = <<<END
@@ -1330,8 +1601,13 @@ cursor_neg_bw = Negative Black and White
 cursor_specific_color = Specific Color
 bg_checkered = Checkered Background
 bg_size = Size:
+bg_custom_size = Custom
 bg_apply_zoom = Apply Zoom
 bg_colors = Colors:
+bg_for_new_docs = Background for New Documents
+bg_for_active_doc = Background for the Active Document
+grid_for_active_doc = Grid for the Active Document
+grid_for_new_docs = Grid for New Documents
 grid_visible = Visible Grid
 grid_x = X:
 grid_y = Y:
@@ -1391,6 +1667,7 @@ convert_cs = Convert to working RGB space
 assign_cs = Assign working RGB space
 ask_cs = Ask
 available_themes = Available Themes
+extension_themes = Extension Themes
 select_theme = &Select
 download_themes = Download Themes
 open_theme_folder = Open &Folder
@@ -1492,6 +1769,13 @@ color = Color:
 antialias = Anti-aliasing filter
 antialias_tooltip = Smooth font edges
 
+[preview]
+title = Preview
+speed_x = Speed x{}
+play_once = Play Once
+play_all_no_tags = Play All Frames (Ignore Tags)
+rewind_on_stop = Rewind on Stop
+
 [recover_files]
 title = Recover Files
 recover_sprite = Recover Sprite
@@ -1506,10 +1790,32 @@ old_sessions = Previous Sessions
 incompatible = [MIGHT BE INCOMPATIBLE v{1}] {0}
 
 [replace_color]
+title = Replace Color
 from = From:
 to = To:
 tolerance = Tolerance:
 
+[remove_slice]
+x_removed = Slice '{}' removed
+n_slices_removed = {} slice(s) removed
+
+[remove_layer]
+x_removed = Layer '{}' removed
+layers_removed = Layers removed
+
+[save_file]
+title = Save File
+save_as = Save As
+export = Export
+saving = Saving file
+saved = File <{}> saved.
+
+[save_palette]
+title = Save Palette
+
+[save_selection]
+title = Save Selection (.msk file)
+
 [script_access]
 title = Security
 script_label = The following script:
@@ -1590,6 +1896,13 @@ double_high = Double-high Pixels (1:2)
 color_profile = Color Profile:
 assign_color_profile = Assign
 convert_color_profile = Convert
+rgb = RGB
+grayscale = Grayscale
+indexed_color = Indexed ({0} colors)
+indexed_image_only = (only for indexed images)
+assign_color_profile = Assign Color Profile
+convert_color_profile = Convert Color Profile
+change_sprite_props = Change Sprite Properties
 
 [sprite_size]
 title = Sprite Size
@@ -1610,6 +1923,9 @@ lock_ratio = Lock Ratio
 percentage = Percentage:
 interpolation = Interpolation:
 method = Method:
+method_nearest_neighbor = Nearest-neighbor
+method_bilinear = Bilinear
+method_rotsprite = RotSprite
 
 [svg_options]
 title = SVG Options
diff --git a/src/app/cmd/flatten_layers.cpp b/src/app/cmd/flatten_layers.cpp
index c281b722d..936a5b04f 100644
--- a/src/app/cmd/flatten_layers.cpp
+++ b/src/app/cmd/flatten_layers.cpp
@@ -20,6 +20,7 @@
 #include "app/cmd/set_layer_name.h"
 #include "app/cmd/unlink_cel.h"
 #include "app/doc.h"
+#include "app/i18n/strings.h"
 #include "app/restore_visible_layers.h"
 #include "doc/algorithm/shrink_bounds.h"
 #include "doc/cel.h"
@@ -81,7 +82,7 @@ void FlattenLayers::onExecute()
     // Create a new transparent layer to flatten everything onto it.
     flatLayer = new LayerImage(sprite);
     ASSERT(flatLayer->isVisible());
-    flatLayer->setName("Flattened");
+    flatLayer->setName(Strings::layer_properties_flattened());
     newFlatLayer = true;
     bgcolor = sprite->transparentColor();
   }
diff --git a/src/app/commands/cmd_change_pixel_format.cpp b/src/app/commands/cmd_change_pixel_format.cpp
index 1a9a221c5..2ca4f2ebf 100644
--- a/src/app/commands/cmd_change_pixel_format.cpp
+++ b/src/app/commands/cmd_change_pixel_format.cpp
@@ -171,17 +171,13 @@ class ConversionItem : public ListItem {
 public:
   ConversionItem(const doc::PixelFormat pixelFormat)
     : m_pixelFormat(pixelFormat) {
+    std::string toMode;
     switch (pixelFormat) {
-      case IMAGE_RGB:
-        setText("-> RGB");
-        break;
-      case IMAGE_GRAYSCALE:
-        setText("-> Grayscale");
-        break;
-      case IMAGE_INDEXED:
-        setText("-> Indexed");
-        break;
+      case IMAGE_RGB:       toMode = Strings::commands_ChangePixelFormat_RGB();       break;
+      case IMAGE_GRAYSCALE: toMode = Strings::commands_ChangePixelFormat_Grayscale(); break;
+      case IMAGE_INDEXED:   toMode = Strings::commands_ChangePixelFormat_Indexed();   break;
     }
+    setText(fmt::format("-> {}", toMode));
   }
   doc::PixelFormat pixelFormat() const { return m_pixelFormat; }
 private:
@@ -204,11 +200,13 @@ public:
     const doc::PixelFormat from = m_editor->sprite()->pixelFormat();
 
     // Add the color mode in the window title
+    std::string fromMode;
     switch (from) {
-      case IMAGE_RGB: setText(text() + ": RGB"); break;
-      case IMAGE_GRAYSCALE: setText(text() + ": Grayscale"); break;
-      case IMAGE_INDEXED: setText(text() + ": Indexed"); break;
+      case IMAGE_RGB:       fromMode = Strings::commands_ChangePixelFormat_RGB();       break;
+      case IMAGE_GRAYSCALE: fromMode = Strings::commands_ChangePixelFormat_Grayscale(); break;
+      case IMAGE_INDEXED:   fromMode = Strings::commands_ChangePixelFormat_Indexed();   break;
     }
+    setText(fmt::format("{}: {}", text(), fromMode));
 
     // Add conversion items
     if (from != IMAGE_RGB)
@@ -646,7 +644,7 @@ void ChangePixelFormatCommand::onExecute(Context* context)
 
   {
     const ContextReader reader(context);
-    SpriteJob job(reader, "Color Mode Change");
+    SpriteJob job(reader, Strings::color_mode_title().c_str());
     Sprite* sprite(job.sprite());
 
     // TODO this was moved in the main UI thread because
diff --git a/src/app/commands/cmd_clear_cel.cpp b/src/app/commands/cmd_clear_cel.cpp
index 48624649d..a7669865a 100644
--- a/src/app/commands/cmd_clear_cel.cpp
+++ b/src/app/commands/cmd_clear_cel.cpp
@@ -13,6 +13,7 @@
 #include "app/commands/command.h"
 #include "app/context_access.h"
 #include "app/doc_api.h"
+#include "app/i18n/strings.h"
 #include "app/modules/gui.h"
 #include "app/tx.h"
 #include "app/ui/status_bar.h"
@@ -80,7 +81,7 @@ void ClearCelCommand::onExecute(Context* context)
 
   if (nonEditableLayers)
     StatusBar::instance()->showTip(1000,
-      "There are locked layers");
+      Strings::statusbar_tips_locked_layers());
 
   update_screen_for_document(document);
 }
diff --git a/src/app/commands/cmd_export_sprite_sheet.cpp b/src/app/commands/cmd_export_sprite_sheet.cpp
index a20b73379..84148eb89 100644
--- a/src/app/commands/cmd_export_sprite_sheet.cpp
+++ b/src/app/commands/cmd_export_sprite_sheet.cpp
@@ -854,7 +854,7 @@ private:
   void onImageFilename() {
     base::paths newFilename;
     if (!app::show_file_selector(
-          "Save Sprite Sheet", m_filename,
+          Strings::export_sprite_sheet_save_title(), m_filename,
           get_writable_extensions(),
           FileSelectorType::Save, newFilename))
       return;
@@ -879,8 +879,11 @@ private:
     base::paths exts = { "json" };
     base::paths newFilename;
     if (!app::show_file_selector(
-          "Save JSON Data", m_dataFilename, exts,
-          FileSelectorType::Save, newFilename))
+           Strings::export_sprite_sheet_save_json_title(),
+           m_dataFilename,
+           exts,
+           FileSelectorType::Save,
+           newFilename))
       return;
 
     ASSERT(!newFilename.empty());
@@ -1335,7 +1338,7 @@ void ExportSpriteSheetCommand::onExecute(Context* context)
 
     StatusBar* statusbar = StatusBar::instance();
     if (statusbar)
-      statusbar->showTip(1000, "Sprite Sheet Generated");
+      statusbar->showTip(1000, Strings::export_sprite_sheet_generated());
 
     // Save the exported sprite sheet as a recent file
     if (newDocument->isAssociatedToFile())
diff --git a/src/app/commands/cmd_import_sprite_sheet.cpp b/src/app/commands/cmd_import_sprite_sheet.cpp
index 418a775c5..f69e6dfb2 100644
--- a/src/app/commands/cmd_import_sprite_sheet.cpp
+++ b/src/app/commands/cmd_import_sprite_sheet.cpp
@@ -70,10 +70,10 @@ public:
       (int)app::SpriteSheetType::Columns == 4,
       "SpriteSheetType enum changed");
 
-    sheetType()->addItem("Horizontal Strip");
-    sheetType()->addItem("Vertical Strip");
-    sheetType()->addItem("By Rows");
-    sheetType()->addItem("By Columns");
+    sheetType()->addItem(Strings::import_sprite_sheet_type_horz());
+    sheetType()->addItem(Strings::import_sprite_sheet_type_vert());
+    sheetType()->addItem(Strings::import_sprite_sheet_type_rows());
+    sheetType()->addItem(Strings::import_sprite_sheet_type_cols());
     sheetType()->setSelectedItemIndex((int)app::SpriteSheetType::Rows-1);
 
     sheetType()->Change.connect([this]{ onSheetTypeChange(); });
@@ -251,7 +251,7 @@ protected:
   }
 
   std::string onGetContextBarHelp() override {
-    return "Select bounds to identify sprite frames";
+    return Strings::import_sprite_sheet_context_bar_help();
   }
 
 private:
@@ -513,11 +513,13 @@ void ImportSpriteSheetCommand::onExecute(Context* context)
     // The following steps modify the sprite, so we wrap all
     // operations in a undo-transaction.
     ContextWriter writer(context);
-    Tx tx(writer.context(), "Import Sprite Sheet", ModifyDocument);
+    Tx tx(
+      writer.context(), Strings::import_sprite_sheet_title(), ModifyDocument);
     DocApi api = document->getApi(tx);
 
     // Add the layer in the sprite.
-    LayerImage* resultLayer = api.newLayer(sprite->root(), "Sprite Sheet");
+    LayerImage* resultLayer =
+      api.newLayer(sprite->root(), Strings::import_sprite_sheet_layer_name());
 
     // Add all frames+cels to the new layer
     for (size_t i=0; i<animation.size(); ++i) {
diff --git a/src/app/commands/cmd_keyboard_shortcuts.cpp b/src/app/commands/cmd_keyboard_shortcuts.cpp
index 7eea0f1c8..ac811e64b 100644
--- a/src/app/commands/cmd_keyboard_shortcuts.cpp
+++ b/src/app/commands/cmd_keyboard_shortcuts.cpp
@@ -80,9 +80,9 @@ public:
 class HeaderItem : public ListItem {
 public:
   HeaderItem()
-    : m_actionLabel("Action")
-    , m_keyLabel("Key")
-    , m_contextLabel("Context") {
+    : m_actionLabel(Strings::keyboard_shortcuts_header_action())
+    , m_keyLabel(Strings::keyboard_shortcuts_header_key())
+    , m_contextLabel(Strings::keyboard_shortcuts_header_context()) {
     setBorder(gfx::Border(0));
 
     auto theme = SkinTheme::get(this);
@@ -447,7 +447,7 @@ private:
 
             m_addButton->setBgColor(gfx::ColorNone);
             m_addButton->setBounds(itemBounds);
-            m_addButton->setText("Add");
+            m_addButton->setText(Strings::keyboard_shortcuts_add());
 
             invalidate();
           }
@@ -481,7 +481,7 @@ private:
   std::string getAccelText(const Accelerator& accel) const {
     if (m_key && m_key->type() == KeyType::WheelAction &&
         accel.isEmpty()) {
-      return "(Default Action)";
+      return Strings::keyboard_shortcuts_default_action();
     }
     else {
       return accel.toString();
@@ -840,7 +840,7 @@ private:
     base::paths exts = { KEYBOARD_FILENAME_EXTENSION };
     base::paths filename;
     if (!app::show_file_selector(
-          "Import Keyboard Shortcuts", "", exts,
+          Strings::keyboard_shortcuts_import_keyboard_sc(), "", exts,
           FileSelectorType::Open, filename))
       return;
 
@@ -856,7 +856,7 @@ private:
     base::paths filename;
 
     if (!app::show_file_selector(
-          "Export Keyboard Shortcuts", "", exts,
+          Strings::keyboard_shortcuts_export_keyboard_sc(), "", exts,
           FileSelectorType::Save, filename))
       return;
 
diff --git a/src/app/commands/cmd_layer_properties.cpp b/src/app/commands/cmd_layer_properties.cpp
index c8542e4fd..574cb4355 100644
--- a/src/app/commands/cmd_layer_properties.cpp
+++ b/src/app/commands/cmd_layer_properties.cpp
@@ -21,6 +21,7 @@
 #include "app/context_access.h"
 #include "app/doc.h"
 #include "app/doc_event.h"
+#include "app/i18n/strings.h"
 #include "app/modules/gui.h"
 #include "app/tx.h"
 #include "app/ui/main_window.h"
@@ -79,30 +80,49 @@ public:
     name()->setMinSize(gfx::Size(128, 0));
     name()->setExpansive(true);
 
-    mode()->addItem(new BlendModeItem("Normal", doc::BlendMode::NORMAL));
+    mode()->addItem(new BlendModeItem(Strings::layer_properties_normal(),
+                                      doc::BlendMode::NORMAL));
     mode()->addItem(new SeparatorInView);
-    mode()->addItem(new BlendModeItem("Darken", doc::BlendMode::DARKEN));
-    mode()->addItem(new BlendModeItem("Multiply", doc::BlendMode::MULTIPLY));
-    mode()->addItem(new BlendModeItem("Color Burn", doc::BlendMode::COLOR_BURN));
+    mode()->addItem(new BlendModeItem(Strings::layer_properties_darken(),
+                                      doc::BlendMode::DARKEN));
+    mode()->addItem(new BlendModeItem(Strings::layer_properties_multiply(),
+                                      doc::BlendMode::MULTIPLY));
+    mode()->addItem(new BlendModeItem(Strings::layer_properties_color_burn(),
+                                      doc::BlendMode::COLOR_BURN));
     mode()->addItem(new SeparatorInView);
-    mode()->addItem(new BlendModeItem("Lighten", doc::BlendMode::LIGHTEN));
-    mode()->addItem(new BlendModeItem("Screen", doc::BlendMode::SCREEN));
-    mode()->addItem(new BlendModeItem("Color Dodge", doc::BlendMode::COLOR_DODGE));
-    mode()->addItem(new BlendModeItem("Addition", doc::BlendMode::ADDITION));
+    mode()->addItem(new BlendModeItem(Strings::layer_properties_lighten(),
+                                      doc::BlendMode::LIGHTEN));
+    mode()->addItem(new BlendModeItem(Strings::layer_properties_screen(),
+                                      doc::BlendMode::SCREEN));
+    mode()->addItem(new BlendModeItem(Strings::layer_properties_color_dodge(),
+                                      doc::BlendMode::COLOR_DODGE));
+    mode()->addItem(new BlendModeItem(Strings::layer_properties_addition(),
+                                      doc::BlendMode::ADDITION));
     mode()->addItem(new SeparatorInView);
-    mode()->addItem(new BlendModeItem("Overlay", doc::BlendMode::OVERLAY));
-    mode()->addItem(new BlendModeItem("Soft Light", doc::BlendMode::SOFT_LIGHT));
-    mode()->addItem(new BlendModeItem("Hard Light", doc::BlendMode::HARD_LIGHT));
+    mode()->addItem(new BlendModeItem(Strings::layer_properties_overlay(),
+                                      doc::BlendMode::OVERLAY));
+    mode()->addItem(new BlendModeItem(Strings::layer_properties_soft_light(),
+                                      doc::BlendMode::SOFT_LIGHT));
+    mode()->addItem(new BlendModeItem(Strings::layer_properties_hard_light(),
+                                      doc::BlendMode::HARD_LIGHT));
     mode()->addItem(new SeparatorInView);
-    mode()->addItem(new BlendModeItem("Difference", doc::BlendMode::DIFFERENCE));
-    mode()->addItem(new BlendModeItem("Exclusion", doc::BlendMode::EXCLUSION));
-    mode()->addItem(new BlendModeItem("Subtract", doc::BlendMode::SUBTRACT));
-    mode()->addItem(new BlendModeItem("Divide", doc::BlendMode::DIVIDE));
+    mode()->addItem(new BlendModeItem(Strings::layer_properties_difference(),
+                                      doc::BlendMode::DIFFERENCE));
+    mode()->addItem(new BlendModeItem(Strings::layer_properties_exclusion(),
+                                      doc::BlendMode::EXCLUSION));
+    mode()->addItem(new BlendModeItem(Strings::layer_properties_subtract(),
+                                      doc::BlendMode::SUBTRACT));
+    mode()->addItem(new BlendModeItem(Strings::layer_properties_divide(),
+                                      doc::BlendMode::DIVIDE));
     mode()->addItem(new SeparatorInView);
-    mode()->addItem(new BlendModeItem("Hue", doc::BlendMode::HSL_HUE));
-    mode()->addItem(new BlendModeItem("Saturation", doc::BlendMode::HSL_SATURATION));
-    mode()->addItem(new BlendModeItem("Color", doc::BlendMode::HSL_COLOR));
-    mode()->addItem(new BlendModeItem("Luminosity", doc::BlendMode::HSL_LUMINOSITY));
+    mode()->addItem(new BlendModeItem(Strings::layer_properties_hue(),
+                                      doc::BlendMode::HSL_HUE));
+    mode()->addItem(new BlendModeItem(Strings::layer_properties_saturation(),
+                                      doc::BlendMode::HSL_SATURATION));
+    mode()->addItem(new BlendModeItem(Strings::layer_properties_color(),
+                                      doc::BlendMode::HSL_COLOR));
+    mode()->addItem(new BlendModeItem(Strings::layer_properties_luminosity(),
+                                      doc::BlendMode::HSL_LUMINOSITY));
 
     name()->Change.connect([this]{ onStartTimer(); });
     mode()->Change.connect([this]{ onStartTimer(); });
@@ -407,7 +427,7 @@ private:
       m_userDataView.entry()->setText(m_layer->userData().text());
     }
     else {
-      name()->setText("No Layer");
+      name()->setText(Strings::layer_properties_no_layer());
       name()->setEnabled(false);
       mode()->setEnabled(false);
       opacity()->setEnabled(false);
diff --git a/src/app/commands/cmd_link_cels.cpp b/src/app/commands/cmd_link_cels.cpp
index 48c5700b6..a466add56 100644
--- a/src/app/commands/cmd_link_cels.cpp
+++ b/src/app/commands/cmd_link_cels.cpp
@@ -12,6 +12,7 @@
 #include "app/cmd/copy_cel.h"
 #include "app/commands/command.h"
 #include "app/context_access.h"
+#include "app/i18n/strings.h"
 #include "app/modules/gui.h"
 #include "app/tx.h"
 #include "app/ui/status_bar.h"
@@ -91,7 +92,7 @@ void LinkCelsCommand::onExecute(Context* context)
 
   if (nonEditableLayers)
     StatusBar::instance()->showTip(1000,
-      "There are locked layers");
+      Strings::statusbar_tips_locked_layers());
 
   update_screen_for_document(document);
 }
diff --git a/src/app/commands/cmd_load_mask.cpp b/src/app/commands/cmd_load_mask.cpp
index c1e176e05..3197a6a8c 100644
--- a/src/app/commands/cmd_load_mask.cpp
+++ b/src/app/commands/cmd_load_mask.cpp
@@ -61,7 +61,7 @@ void LoadMaskCommand::onExecute(Context* context)
     base::paths exts = { "msk" };
     base::paths selectedFilename;
     if (!app::show_file_selector(
-          "Load .msk File", m_filename, exts,
+          Strings::load_selection_title(), m_filename, exts,
           FileSelectorType::Open, selectedFilename))
       return;
 
@@ -77,7 +77,9 @@ void LoadMaskCommand::onExecute(Context* context)
   {
     ContextWriter writer(reader);
     Doc* document = writer.document();
-    Tx tx(writer.context(), "Mask Load", DoesntModifyDocument);
+    Tx tx(writer.context(),
+          Strings::load_selection_title(),
+          DoesntModifyDocument);
     tx(new cmd::SetMask(document, mask.get()));
     tx.commit();
 
diff --git a/src/app/commands/cmd_load_palette.cpp b/src/app/commands/cmd_load_palette.cpp
index 7d136d721..fb46d1a15 100644
--- a/src/app/commands/cmd_load_palette.cpp
+++ b/src/app/commands/cmd_load_palette.cpp
@@ -66,7 +66,7 @@ void LoadPaletteCommand::onExecute(Context* context)
     base::paths exts = get_readable_palette_extensions();
     base::paths filenames;
     if (app::show_file_selector(
-          "Load Palette", "", exts,
+          Strings::load_palette_title(), "", exts,
           FileSelectorType::Open, filenames)) {
       filename = filenames.front();
     }
diff --git a/src/app/commands/cmd_mask_by_color.cpp b/src/app/commands/cmd_mask_by_color.cpp
index e0c0b3dc4..89a355073 100644
--- a/src/app/commands/cmd_mask_by_color.cpp
+++ b/src/app/commands/cmd_mask_by_color.cpp
@@ -18,6 +18,7 @@
 #include "app/context_access.h"
 #include "app/doc.h"
 #include "app/ini_file.h"
+#include "app/i18n/strings.h"
 #include "app/modules/editors.h"
 #include "app/modules/gui.h"
 #include "app/tx.h"
@@ -106,7 +107,8 @@ void MaskByColorCommand::onExecute(Context* context)
   if (!image)
     return;
 
-  std::unique_ptr<Window> win(new Window(Window::WithTitleBar, "Mask by Color"));
+  std::unique_ptr<Window> win(
+    new Window(Window::WithTitleBar, Strings::mask_by_color_title()));
   base::ScopedValue<Window*> setWindow(m_window, win.get(), nullptr);
   TooltipManager* tooltipManager = new TooltipManager();
   m_window->addChild(tooltipManager);
@@ -114,20 +116,20 @@ void MaskByColorCommand::onExecute(Context* context)
   auto box2 = new Box(HORIZONTAL);
   auto box3 = new Box(HORIZONTAL);
   auto box4 = new Box(HORIZONTAL | HOMOGENEOUS);
-  auto label_color = new Label("Color:");
+  auto label_color = new Label(Strings::mask_by_color_label_color());
   m_buttonColor = new ColorButton(
     ColorBar::instance()->getFgColor(),
     sprite->pixelFormat(),
     ColorButtonOptions());
-  auto label_tolerance = new Label("Tolerance:");
+  auto label_tolerance = new Label(Strings::mask_by_color_tolerance());
   m_sliderTolerance = new Slider(0, 255, get_config_int(ConfigSection, "Tolerance", 0));
 
   m_selMode = new SelModeField;
   m_selMode->setupTooltips(tooltipManager);
 
-  m_checkPreview = new CheckBox("&Preview");
-  auto button_ok = new Button("&OK");
-  auto button_cancel = new Button("&Cancel");
+  m_checkPreview = new CheckBox(Strings::mask_by_color_preview());
+  auto button_ok = new Button(Strings::mask_by_color_ok());
+  auto button_cancel = new Button(Strings::mask_by_color_cancel());
 
   m_checkPreview->processMnemonicFromText();
   button_ok->processMnemonicFromText();
diff --git a/src/app/commands/cmd_new_brush.cpp b/src/app/commands/cmd_new_brush.cpp
index cf0f44c07..cfd7975bd 100644
--- a/src/app/commands/cmd_new_brush.cpp
+++ b/src/app/commands/cmd_new_brush.cpp
@@ -15,6 +15,7 @@
 #include "app/commands/commands.h"
 #include "app/console.h"
 #include "app/context_access.h"
+#include "app/i18n/strings.h"
 #include "app/modules/editors.h"
 #include "app/tools/active_tool.h"
 #include "app/tools/ink.h"
@@ -46,7 +47,7 @@ protected:
   void onQuickboxCancel(Editor* editor) override;
 
   std::string onGetContextBarHelp() override {
-    return "Select brush bounds | Right-click to cut";
+    return Strings::new_brush_context_bar_help();
   }
 
 private:
@@ -173,7 +174,7 @@ void NewBrushCommand::createBrush(const Site& site, const Mask* mask)
     CommandId::ChangeBrush(), params);
   if (key && !key->accels().empty()) {
     std::string tooltip;
-    tooltip += "Shortcut: ";
+    tooltip += Strings::new_brush_shortcut() + " ";
     tooltip += key->accels().front().toString();
     StatusBar::instance()->showTip(2000, tooltip);
   }
diff --git a/src/app/commands/cmd_open_file.cpp b/src/app/commands/cmd_open_file.cpp
index 04473312f..212d96963 100644
--- a/src/app/commands/cmd_open_file.cpp
+++ b/src/app/commands/cmd_open_file.cpp
@@ -18,6 +18,7 @@
 #include "app/doc.h"
 #include "app/file/file.h"
 #include "app/file_selector.h"
+#include "app/i18n/strings.h"
 #include "app/job.h"
 #include "app/modules/editors.h"
 #include "app/modules/gui.h"
@@ -37,7 +38,7 @@ namespace app {
 class OpenFileJob : public Job, public IFileOpProgress {
 public:
   OpenFileJob(FileOp* fop)
-    : Job("Loading file")
+    : Job(Strings::open_file_loading().c_str())
     , m_fop(fop)
   {
   }
@@ -122,7 +123,7 @@ void OpenFileCommand::onExecute(Context* context)
     if (!m_folder.empty() && !base::is_path_separator(m_folder[m_folder.size()-1]))
       m_folder.push_back(base::path_separator);
 
-    if (!app::show_file_selector("Open", m_folder, exts,
+    if (!app::show_file_selector(Strings::open_file_title(), m_folder, exts,
                                  FileSelectorType::OpenMultiple,
                                  filenames)) {
       // The user cancelled the operation through UI
diff --git a/src/app/commands/cmd_options.cpp b/src/app/commands/cmd_options.cpp
index f7a3f42a2..b54c8ad75 100644
--- a/src/app/commands/cmd_options.cpp
+++ b/src/app/commands/cmd_options.cpp
@@ -472,14 +472,14 @@ public:
       discardBrush()->setSelected(true);
 
     // Scope
-    bgScope()->addItem("Background for New Documents");
-    gridScope()->addItem("Grid for New Documents");
+    bgScope()->addItem(Strings::options_bg_for_new_docs());
+    gridScope()->addItem(Strings::options_grid_for_new_docs());
     if (context->activeDocument()) {
-      bgScope()->addItem("Background for the Active Document");
+      bgScope()->addItem(Strings::options_bg_for_active_doc());
       bgScope()->setSelectedItemIndex(1);
       bgScope()->Change.connect([this]{ onChangeBgScope(); });
 
-      gridScope()->addItem("Grid for the Active Document");
+      gridScope()->addItem(Strings::options_grid_for_active_doc());
       gridScope()->setSelectedItemIndex(1);
       gridScope()->Change.connect([this]{ onChangeGridScope(); });
     }
@@ -526,13 +526,13 @@ public:
     static_assert(int(app::gen::RightClickMode::LASSO) == 5, "");
     static_assert(int(app::gen::RightClickMode::SELECT_LAYER_AND_MOVE) == 6, "");
 
-    rightClickBehavior()->addItem("Paint with background color");
-    rightClickBehavior()->addItem("Pick foreground color");
-    rightClickBehavior()->addItem("Erase");
-    rightClickBehavior()->addItem("Scroll");
-    rightClickBehavior()->addItem("Rectangular Marquee");
-    rightClickBehavior()->addItem("Lasso");
-    rightClickBehavior()->addItem("Select Layer & Move");
+    rightClickBehavior()->addItem(Strings::options_right_click_paint_bgcolor());
+    rightClickBehavior()->addItem(Strings::options_right_click_pick_fgcolor());
+    rightClickBehavior()->addItem(Strings::options_right_click_erase());
+    rightClickBehavior()->addItem(Strings::options_right_click_scroll());
+    rightClickBehavior()->addItem(Strings::options_right_click_rectangular_marquee());
+    rightClickBehavior()->addItem(Strings::options_right_click_lasso());
+    rightClickBehavior()->addItem(Strings::options_right_click_select_layer_and_move());
     rightClickBehavior()->setSelectedItemIndex((int)m_pref.editor.rightClickMode());
 
 #ifndef __APPLE__ // Zoom sliding two fingers option only on macOS
@@ -548,7 +548,7 @@ public:
     checkeredBgSize()->addItem("4x4");
     checkeredBgSize()->addItem("2x2");
     checkeredBgSize()->addItem("1x1");
-    checkeredBgSize()->addItem("Custom");
+    checkeredBgSize()->addItem(Strings::options_bg_custom_size());
     checkeredBgSize()->Change.connect([this]{ onCheckeredBgSizeChange(); });
 
     // Reset buttons
@@ -1339,7 +1339,7 @@ private:
       if (first) {
         first = false;
         themeList()->addChild(
-          new SeparatorInView("Extension Themes", HORIZONTAL));
+          new SeparatorInView(Strings::options_extension_themes(), HORIZONTAL));
       }
 
       for (auto it : ext->themes()) {
diff --git a/src/app/commands/cmd_remove_layer.cpp b/src/app/commands/cmd_remove_layer.cpp
index 0ee577521..6e4944fc0 100644
--- a/src/app/commands/cmd_remove_layer.cpp
+++ b/src/app/commands/cmd_remove_layer.cpp
@@ -97,9 +97,11 @@ void RemoveLayerCommand::onExecute(Context* context)
 
     StatusBar::instance()->invalidate();
     if (!layerName.empty())
-      StatusBar::instance()->showTip(1000, fmt::format("Layer '{}' removed", layerName));
+      StatusBar::instance()->showTip(
+        1000, fmt::format(Strings::remove_layer_x_removed(), layerName));
     else
-      StatusBar::instance()->showTip(1000, "Layers removed");
+      StatusBar::instance()->showTip(1000,
+                                     Strings::remove_layer_layers_removed());
   }
 #endif
 }
diff --git a/src/app/commands/cmd_remove_slice.cpp b/src/app/commands/cmd_remove_slice.cpp
index 986444a3a..433e5dcb4 100644
--- a/src/app/commands/cmd_remove_slice.cpp
+++ b/src/app/commands/cmd_remove_slice.cpp
@@ -14,6 +14,7 @@
 #include "app/cmd/set_slice_key.h"
 #include "app/commands/command.h"
 #include "app/context_access.h"
+#include "app/i18n/strings.h"
 #include "app/modules/gui.h"
 #include "app/tx.h"
 #include "app/ui/status_bar.h"
@@ -122,10 +123,12 @@ void RemoveSliceCommand::onExecute(Context* context)
   StatusBar::instance()->invalidate();
   if (!sliceName.empty())
     StatusBar::instance()->showTip(
-      1000, fmt::format("Slice '{}' removed", sliceName));
+      1000, fmt::format(Strings::remove_slice_x_removed(), sliceName));
   else
     StatusBar::instance()->showTip(
-      1000, fmt::format("{} slice(s) removed", slicesToDelete.size()));
+      1000,
+      fmt::format(Strings::remove_slice_n_slices_removed(),
+                  slicesToDelete.size()));
 }
 
 Command* CommandFactory::createRemoveSliceCommand()
diff --git a/src/app/commands/cmd_rotate.cpp b/src/app/commands/cmd_rotate.cpp
index 2bf7c0c1f..b99bfb27a 100644
--- a/src/app/commands/cmd_rotate.cpp
+++ b/src/app/commands/cmd_rotate.cpp
@@ -46,8 +46,10 @@ class RotateJob : public SpriteJob {
 
 public:
 
-  RotateJob(const ContextReader& reader, int angle, const CelList& cels, bool rotateSprite)
-    : SpriteJob(reader, "Rotate Canvas")
+  RotateJob(const ContextReader& reader,
+            const std::string& jobName,
+            int angle, const CelList& cels, bool rotateSprite)
+    : SpriteJob(reader, jobName.c_str())
     , m_cels(cels)
     , m_rotateSprite(rotateSprite) {
     m_angle = angle;
@@ -237,7 +239,7 @@ void RotateCommand::onExecute(Context* context)
 
     ContextReader reader(context);
     {
-      RotateJob job(reader, m_angle, cels, rotateSprite);
+      RotateJob job(reader, friendlyName(), m_angle, cels, rotateSprite);
       job.startJob();
       job.waitJob();
     }
diff --git a/src/app/commands/cmd_save_file.cpp b/src/app/commands/cmd_save_file.cpp
index c2749a335..7e30f1a88 100644
--- a/src/app/commands/cmd_save_file.cpp
+++ b/src/app/commands/cmd_save_file.cpp
@@ -49,7 +49,7 @@ namespace app {
 class SaveFileJob : public Job, public IFileOpProgress {
 public:
   SaveFileJob(FileOp* fop)
-    : Job("Saving file")
+    : Job(Strings::save_file_saving().c_str())
     , m_fop(fop)
   {
   }
@@ -254,7 +254,7 @@ void SaveFileBaseCommand::saveDocumentInBackground(
 #ifdef ENABLE_UI
     if (context->isUIAvailable() && params().ui()) {
       StatusBar::instance()->setStatusText(
-        2000, fmt::format("File <{}> saved.",
+        2000, fmt::format(Strings::save_file_saved(),
                           base::get_file_name(filename)));
     }
 #endif
@@ -298,7 +298,7 @@ void SaveFileCommand::onExecute(Context* context)
   // save-as dialog to the user to select for first time the file-name
   // for this document.
   else {
-    saveAsDialog(context, "Save File",
+    saveAsDialog(context, Strings::save_file_title(),
                  (params().filename.isSet() ? params().filename():
                                               document->filename()),
                  MarkAsSaved::On);
@@ -321,7 +321,7 @@ SaveFileAsCommand::SaveFileAsCommand()
 void SaveFileAsCommand::onExecute(Context* context)
 {
   Doc* document = context->activeDocument();
-  saveAsDialog(context, "Save As",
+  saveAsDialog(context, Strings::save_file_save_as(),
                (params().filename.isSet() ? params().filename():
                                             document->filename()),
                MarkAsSaved::On);
@@ -366,7 +366,7 @@ void SaveFileCopyAsCommand::onExecute(Context* context)
       [this, &win, &askOverwrite, context, doc]() -> std::string {
         std::string result =
           saveAsDialog(
-            context, "Export",
+            context, Strings::save_file_export(),
             win.outputFilenameValue(),
             MarkAsSaved::Off,
             SaveInBackground::Off,
diff --git a/src/app/commands/cmd_save_mask.cpp b/src/app/commands/cmd_save_mask.cpp
index 68de89149..4e4c78eb2 100644
--- a/src/app/commands/cmd_save_mask.cpp
+++ b/src/app/commands/cmd_save_mask.cpp
@@ -48,7 +48,7 @@ void SaveMaskCommand::onExecute(Context* context)
   base::paths exts = { "msk" };
   base::paths selFilename;
   if (!app::show_file_selector(
-        "Save .msk File", "default.msk", exts,
+        Strings::save_selection_title(), "default.msk", exts,
         FileSelectorType::Save, selFilename))
     return;
 
diff --git a/src/app/commands/cmd_save_palette.cpp b/src/app/commands/cmd_save_palette.cpp
index 2bafb866e..e52ce22cf 100644
--- a/src/app/commands/cmd_save_palette.cpp
+++ b/src/app/commands/cmd_save_palette.cpp
@@ -64,9 +64,10 @@ void SavePaletteCommand::onExecute(Context* ctx)
     base::paths exts = get_writable_palette_extensions();
     base::paths selFilename;
     std::string initialPath = (m_saveAsPreset ? get_preset_palettes_dir(): "");
-    if (!app::show_file_selector(
-          "Save Palette", initialPath, exts,
-          FileSelectorType::Save, selFilename))
+    if (!app::show_file_selector(Strings::save_palette_title(),
+                                 initialPath,
+                                 exts,
+                                 FileSelectorType::Save, selFilename))
       return;
 
     filename = selFilename.front();
diff --git a/src/app/commands/cmd_sprite_properties.cpp b/src/app/commands/cmd_sprite_properties.cpp
index 885e95c41..0a3406363 100644
--- a/src/app/commands/cmd_sprite_properties.cpp
+++ b/src/app/commands/cmd_sprite_properties.cpp
@@ -122,18 +122,18 @@ void SpritePropertiesCommand::onExecute(Context* context)
     // Update widgets values
     switch (sprite->pixelFormat()) {
       case IMAGE_RGB:
-        imgtype_text = "RGB";
+        imgtype_text = Strings::sprite_properties_rgb();
         break;
       case IMAGE_GRAYSCALE:
-        imgtype_text = "Grayscale";
+        imgtype_text = Strings::sprite_properties_grayscale();
         break;
       case IMAGE_INDEXED:
-        imgtype_text = fmt::format("Indexed ({0} colors)",
+        imgtype_text = fmt::format(Strings::sprite_properties_indexed_color(),
                                    sprite->palette(0)->size());
         break;
       default:
         ASSERT(false);
-        imgtype_text = "Unknown";
+        imgtype_text = Strings::general_unknown();
         break;
     }
 
@@ -169,7 +169,8 @@ void SpritePropertiesCommand::onExecute(Context* context)
         LEFT);
     }
     else {
-      window.transparentColorPlaceholder()->addChild(new Label("(only for indexed images)"));
+      window.transparentColorPlaceholder()->addChild(
+        new Label(Strings::sprite_properties_indexed_image_only()));
     }
 
     // Pixel ratio
@@ -205,7 +206,7 @@ void SpritePropertiesCommand::onExecute(Context* context)
 
         ContextWriter writer(context);
         Sprite* sprite(writer.sprite());
-        Tx tx(writer.context(), "Assign Color Profile");
+        Tx tx(writer.context(), Strings::sprite_properties_assign_color_profile());
         tx(new cmd::AssignColorProfile(
              sprite, colorSpaces[selectedColorProfile]->gfxColorSpace()));
         tx.commit();
@@ -218,7 +219,7 @@ void SpritePropertiesCommand::onExecute(Context* context)
 
         ContextWriter writer(context);
         Sprite* sprite(writer.sprite());
-        Tx tx(writer.context(), "Convert Color Profile");
+        Tx tx(writer.context(), Strings::sprite_properties_convert_color_profile());
         tx(new cmd::ConvertColorProfile(
              sprite, colorSpaces[selectedColorProfile]->gfxColorSpace()));
         tx.commit();
@@ -248,7 +249,7 @@ void SpritePropertiesCommand::onExecute(Context* context)
     if (index != sprite->transparentColor() ||
         pixelRatio != sprite->pixelRatio() ||
         newUserData != sprite->userData()) {
-      Tx tx(writer.context(), "Change Sprite Properties");
+      Tx tx(writer.context(), Strings::sprite_properties_change_sprite_props());
       DocApi api = writer.document()->getApi(tx);
 
       if (index != sprite->transparentColor())
diff --git a/src/app/commands/cmd_sprite_size.cpp b/src/app/commands/cmd_sprite_size.cpp
index 546c6bac6..aabbd99ff 100644
--- a/src/app/commands/cmd_sprite_size.cpp
+++ b/src/app/commands/cmd_sprite_size.cpp
@@ -17,6 +17,7 @@
 #include "app/commands/params.h"
 #include "app/doc_api.h"
 #include "app/ini_file.h"
+#include "app/i18n/strings.h"
 #include "app/modules/gui.h"
 #include "app/modules/palettes.h"
 #include "app/sprite_job.h"
@@ -80,7 +81,7 @@ class SpriteSizeJob : public SpriteJob {
 public:
 
   SpriteSizeJob(const ContextReader& reader, int new_width, int new_height, ResizeMethod resize_method)
-    : SpriteJob(reader, "Sprite Size") {
+    : SpriteJob(reader, Strings::sprite_size_title().c_str()) {
     m_new_width = new_width;
     m_new_height = new_height;
     m_resize_method = resize_method;
@@ -263,9 +264,9 @@ public:
                   doc::algorithm::RESIZE_METHOD_BILINEAR == 1 &&
                   doc::algorithm::RESIZE_METHOD_ROTSPRITE == 2,
                   "ResizeMethod enum has changed");
-    method()->addItem("Nearest-neighbor");
-    method()->addItem("Bilinear");
-    method()->addItem("RotSprite");
+    method()->addItem(Strings::sprite_size_method_nearest_neighbor());
+    method()->addItem(Strings::sprite_size_method_bilinear());
+    method()->addItem(Strings::sprite_size_method_rotsprite());
     int resize_method;
     if (params.method.isSet())
       resize_method = (int)params.method();
diff --git a/src/app/commands/cmd_unlink_cel.cpp b/src/app/commands/cmd_unlink_cel.cpp
index a57b6b135..6e544968b 100644
--- a/src/app/commands/cmd_unlink_cel.cpp
+++ b/src/app/commands/cmd_unlink_cel.cpp
@@ -12,6 +12,7 @@
 #include "app/cmd/unlink_cel.h"
 #include "app/commands/command.h"
 #include "app/context_access.h"
+#include "app/i18n/strings.h"
 #include "app/modules/gui.h"
 #include "app/tx.h"
 #include "app/ui/status_bar.h"
@@ -84,7 +85,7 @@ void UnlinkCelCommand::onExecute(Context* context)
 
   if (nonEditableLayers)
     StatusBar::instance()->showTip(1000,
-      "There are locked layers");
+      Strings::statusbar_tips_locked_layers());
 
   update_screen_for_document(document);
 }
diff --git a/src/app/commands/command.cpp b/src/app/commands/command.cpp
index 4ac363209..64b5563b6 100644
--- a/src/app/commands/command.cpp
+++ b/src/app/commands/command.cpp
@@ -20,12 +20,7 @@ Command::Command(const char* id, CommandFlags flags)
   : m_id(id)
   , m_flags(flags)
 {
-  std::string strId = "commands.";
-  strId += this->id();
-  if (auto s = Strings::instance())
-    m_friendlyName = s->translate(strId.c_str());
-  else
-    m_friendlyName = strId;
+  generateFriendlyName();
 }
 
 Command::~Command()
@@ -69,6 +64,15 @@ bool Command::isChecked(Context* context)
   }
 }
 
+void Command::generateFriendlyName()
+{
+  std::string strId = "commands." + this->id();
+  if (auto s = Strings::instance())
+    m_friendlyName = s->translate(strId.c_str());
+  else
+    m_friendlyName = strId;
+}
+
 void Command::execute(Context* context)
 {
   onExecute(context);
diff --git a/src/app/commands/command.h b/src/app/commands/command.h
index 02eb47353..f3da3ac58 100644
--- a/src/app/commands/command.h
+++ b/src/app/commands/command.h
@@ -35,6 +35,7 @@ namespace app {
     void loadParams(const Params& params);
     bool isEnabled(Context* context);
     bool isChecked(Context* context);
+    void generateFriendlyName();
 
   protected:
     virtual bool onNeedsParams() const;
diff --git a/src/app/commands/filters/cmd_brightness_contrast.cpp b/src/app/commands/filters/cmd_brightness_contrast.cpp
index 0a04a94ab..be55a20da 100644
--- a/src/app/commands/filters/cmd_brightness_contrast.cpp
+++ b/src/app/commands/filters/cmd_brightness_contrast.cpp
@@ -17,6 +17,7 @@
 #include "app/commands/new_params.h"
 #include "app/context.h"
 #include "app/ini_file.h"
+#include "app/i18n/strings.h"
 #include "app/modules/gui.h"
 #include "app/ui/color_button.h"
 #include "app/ui/color_sliders.h"
@@ -47,16 +48,20 @@ class BrightnessContrastWindow : public FilterWindow {
 public:
   BrightnessContrastWindow(BrightnessContrastFilter& filter,
                            FilterManagerImpl& filterMgr)
-    : FilterWindow("Brightness/Contrast", ConfigSection, &filterMgr,
+    : FilterWindow(Strings::brightness_contrast_title().c_str(),
+                   ConfigSection,
+                   &filterMgr,
                    WithChannelsSelector,
                    WithoutTiledCheckBox)
     , m_brightness(-100, 100, int(100.0 * filter.brightness()))
     , m_contrast(-100, 100, int(100.0 * filter.contrast()))
     , m_filter(filter)
   {
-    getContainer()->addChild(new ui::Label("Brightness:"));
+    getContainer()->addChild(
+      new ui::Label(Strings::brightness_contrast_brightness_label()));
     getContainer()->addChild(&m_brightness);
-    getContainer()->addChild(new ui::Label("Contrast:"));
+    getContainer()->addChild(
+      new ui::Label(Strings::brightness_contrast_contrast_label()));
     getContainer()->addChild(&m_contrast);
     m_brightness.Change.connect([this]{ onChange(); });
     m_contrast.Change.connect([this]{ onChange(); });
diff --git a/src/app/commands/filters/cmd_replace_color.cpp b/src/app/commands/filters/cmd_replace_color.cpp
index d42f588fa..a852c1df6 100644
--- a/src/app/commands/filters/cmd_replace_color.cpp
+++ b/src/app/commands/filters/cmd_replace_color.cpp
@@ -22,6 +22,7 @@
 #include "app/commands/new_params.h"
 #include "app/context.h"
 #include "app/find_widget.h"
+#include "app/i18n/strings.h"
 #include "app/ini_file.h"
 #include "app/load_widget.h"
 #include "app/pref/preferences.h"
@@ -78,7 +79,9 @@ static const char* ConfigSection = "ReplaceColor";
 class ReplaceColorWindow : public FilterWindow {
 public:
   ReplaceColorWindow(ReplaceColorFilterWrapper& filter, FilterManagerImpl& filterMgr)
-    : FilterWindow("Replace Color", ConfigSection, &filterMgr,
+    : FilterWindow(Strings::replace_color_title().c_str(),
+                   ConfigSection,
+                   &filterMgr,
                    WithChannelsSelector,
                    WithoutTiledCheckBox)
     , m_filter(filter)
diff --git a/src/app/commands/filters/filter_window.cpp b/src/app/commands/filters/filter_window.cpp
index dafc292a3..cb96d55ac 100644
--- a/src/app/commands/filters/filter_window.cpp
+++ b/src/app/commands/filters/filter_window.cpp
@@ -13,6 +13,7 @@
 
 #include "app/commands/filters/filter_manager_impl.h"
 #include "app/commands/filters/filter_worker.h"
+#include "app/i18n/strings.h"
 #include "app/ini_file.h"
 #include "app/modules/editors.h"
 #include "app/modules/gui.h"
@@ -35,12 +36,14 @@ FilterWindow::FilterWindow(const char* title, const char* cfgSection,
   , m_hbox(HORIZONTAL)
   , m_vbox(VERTICAL)
   , m_container(VERTICAL)
-  , m_okButton("&OK")
-  , m_cancelButton("&Cancel")
+  , m_okButton(Strings::filters_ok())
+  , m_cancelButton(Strings::filters_cancel())
   , m_preview(filterMgr)
   , m_targetButton(filterMgr->pixelFormat(), (withChannels == WithChannelsSelector))
-  , m_showPreview("&Preview")
-  , m_tiledCheck(withTiled == WithTiledCheckBox ? new CheckBox("&Tiled") : NULL)
+  , m_showPreview(Strings::filters_preview())
+  , m_tiledCheck(withTiled == WithTiledCheckBox ?
+                   new CheckBox(Strings::filters_tiled()) :
+                   nullptr)
 {
   m_okButton.processMnemonicFromText();
   m_cancelButton.processMnemonicFromText();
diff --git a/src/app/commands/filters/filter_worker.cpp b/src/app/commands/filters/filter_worker.cpp
index bd2e1fdbe..a378cee55 100644
--- a/src/app/commands/filters/filter_worker.cpp
+++ b/src/app/commands/filters/filter_worker.cpp
@@ -170,8 +170,8 @@ void FilterWorker::run()
     console.printf("A problem has occurred.\n\nDetails:\n%s", m_error.c_str());
   }
   else if (m_cancelled && !m_filterMgr->isTransaction()) {
-    StatusBar::instance()
-      ->showTip(2500, "No unlocked layers to apply filter");
+    StatusBar::instance()->showTip(2500,
+      Strings::statusbar_tips_filter_no_unlocked_layer());
   }
 #endif // ENABLE_UI
 }
diff --git a/src/app/console.cpp b/src/app/console.cpp
index 051d3fb94..bf7eefd85 100644
--- a/src/app/console.cpp
+++ b/src/app/console.cpp
@@ -13,6 +13,7 @@
 
 #include "app/app.h"
 #include "app/context.h"
+#include "app/i18n/strings.h"
 #include "app/modules/gui.h"
 #include "app/ui/main_window.h"
 #include "app/ui/status_bar.h"
@@ -35,9 +36,9 @@ Console::ConsoleWindow* Console::m_console = nullptr;
 
 class Console::ConsoleWindow final : public Window {
 public:
-  ConsoleWindow() : Window(Window::WithTitleBar, "Console"),
+  ConsoleWindow() : Window(Window::WithTitleBar, Strings::debugger_console()),
                     m_textbox("", WORDWRAP),
-                    m_button("Cancel") {
+                    m_button(Strings::debugger_cancel()) {
     TRACE_CON("CON: ConsoleWindow this=", this);
 
     m_button.Click.connect([this]{ closeWindow(&m_button); });
diff --git a/src/app/tools/ink_type.cpp b/src/app/tools/ink_type.cpp
index 0af9d25e1..d47bc137d 100644
--- a/src/app/tools/ink_type.cpp
+++ b/src/app/tools/ink_type.cpp
@@ -10,6 +10,7 @@
 #endif
 
 #include "app/tools/ink_type.h"
+#include "app/i18n/strings.h"
 
 namespace app {
 namespace tools {
@@ -17,13 +18,13 @@ namespace tools {
 std::string ink_type_to_string(InkType inkType)
 {
   switch (inkType) {
-    case tools::InkType::SIMPLE: return "Simple Ink";
-    case tools::InkType::ALPHA_COMPOSITING: return "Alpha Compositing";
-    case tools::InkType::COPY_COLOR: return "Copy Color+Alpha";
-    case tools::InkType::LOCK_ALPHA: return "Lock Alpha";
-    case tools::InkType::SHADING: return "Shading";
+    case tools::InkType::SIMPLE:            return Strings::inks_simple_ink();
+    case tools::InkType::ALPHA_COMPOSITING: return Strings::inks_alpha_compositing();
+    case tools::InkType::COPY_COLOR:        return Strings::inks_copy_color();
+    case tools::InkType::LOCK_ALPHA:        return Strings::inks_lock_alpha();
+    case tools::InkType::SHADING:           return Strings::inks_shading();
   }
-  return "Unknown";
+  return Strings::general_unknown();
 }
 
 std::string ink_type_to_string_id(InkType inkType)
diff --git a/src/app/ui/brush_popup.cpp b/src/app/ui/brush_popup.cpp
index dc6fadd8a..62e0c543d 100644
--- a/src/app/ui/brush_popup.cpp
+++ b/src/app/ui/brush_popup.cpp
@@ -15,6 +15,7 @@
 #include "app/brush_slot.h"
 #include "app/commands/command.h"
 #include "app/commands/commands.h"
+#include "app/i18n/strings.h"
 #include "app/modules/gui.h"
 #include "app/modules/palettes.h"
 #include "app/pref/preferences.h"
@@ -160,10 +161,10 @@ private:
 
   void onClick() override {
     Menu menu;
-    AppMenuItem save("Save Brush Here");
-    AppMenuItem lockItem("Locked");
-    AppMenuItem deleteItem("Delete");
-    AppMenuItem deleteAllItem("Delete All");
+    AppMenuItem save(Strings::brush_slot_params_save_brush());
+    AppMenuItem lockItem(Strings::brush_slot_params_locked());
+    AppMenuItem deleteItem(Strings::brush_slot_params_delete());
+    AppMenuItem deleteAllItem(Strings::brush_slot_params_delete_all());
 
     lockItem.setSelected(m_brushes.isBrushSlotLocked(m_slot));
 
@@ -179,7 +180,8 @@ private:
     menu.addChild(new MenuSeparator);
     menu.addChild(&deleteAllItem);
     menu.addChild(new Label(""));
-    menu.addChild(new Separator("Saved Parameters", HORIZONTAL));
+    menu.addChild(
+      new Separator(Strings::brush_slot_params_saved_parameters(), HORIZONTAL));
 
     app::gen::BrushSlotParams params;
     menu.addChild(&params);
@@ -263,7 +265,7 @@ private:
 class NewCustomBrushItem : public ButtonSet::Item {
 public:
   NewCustomBrushItem() {
-    setText("Save Brush");
+    setText(Strings::brush_slot_params_save_brush());
   }
 
 private:
diff --git a/src/app/ui/color_bar.cpp b/src/app/ui/color_bar.cpp
index e45234c3a..c11532fce 100644
--- a/src/app/ui/color_bar.cpp
+++ b/src/app/ui/color_bar.cpp
@@ -1456,7 +1456,7 @@ void ColorBar::onReverseColors()
   }
 
   Palette newPalette(*get_current_palette(), remap);
-  setPalette(&newPalette, "Reverse Colors");
+  setPalette(&newPalette, Strings::color_bar_reverse_colors());
 }
 
 void ColorBar::onSortBy(SortPaletteBy channel)
@@ -1500,7 +1500,7 @@ void ColorBar::onSortBy(SortPaletteBy channel)
   // Create a new palette and apply the remap. This is the final new
   // palette for the sprite.
   Palette newPalette(palette, remapOrig);
-  setPalette(&newPalette, "Sort Colors");
+  setPalette(&newPalette, Strings::color_bar_sort_colors());
 }
 
 void ColorBar::onGradient(GradientType gradientType)
@@ -1512,11 +1512,11 @@ void ColorBar::onGradient(GradientType gradientType)
   Palette newPalette(*get_current_palette());
   if (gradientType == GradientType::LINEAR) {
     newPalette.makeGradient(index1, index2);
-    setPalette(&newPalette, "Gradient");
+    setPalette(&newPalette, Strings::color_bar_gradient());
   }
   else {
     newPalette.makeHueGradient(index1, index2);
-    setPalette(&newPalette, "Gradient by Hue");
+    setPalette(&newPalette, Strings::color_bar_gradient_by_hue());
   }
 }
 
@@ -1919,19 +1919,19 @@ void ColorBar::showPaletteSortOptions()
 
   Menu menu;
   MenuItem
-    rev("Reverse Colors"),
-    grd("Gradient"),
-    grh("Gradient by Hue"),
-    hue("Sort by Hue"),
-    sat("Sort by Saturation"),
-    bri("Sort by Brightness"),
-    lum("Sort by Luminance"),
-    red("Sort by Red"),
-    grn("Sort by Green"),
-    blu("Sort by Blue"),
-    alp("Sort by Alpha"),
-    asc("Ascending"),
-    des("Descending");
+    rev(Strings::color_bar_reverse_colors()),
+    grd(Strings::color_bar_gradient()),
+    grh(Strings::color_bar_gradient_by_hue()),
+    hue(Strings::color_bar_sort_by_hue()),
+    sat(Strings::color_bar_sort_by_saturation()),
+    bri(Strings::color_bar_sort_by_brightness()),
+    lum(Strings::color_bar_sort_by_luminance()),
+    red(Strings::color_bar_sort_by_red()),
+    grn(Strings::color_bar_sort_by_green()),
+    blu(Strings::color_bar_sort_by_blue()),
+    alp(Strings::color_bar_sort_by_alpha()),
+    asc(Strings::color_bar_ascending()),
+    des(Strings::color_bar_descending());
   menu.addChild(&rev);
   menu.addChild(&grd);
   menu.addChild(&grh);
diff --git a/src/app/ui/color_popup.cpp b/src/app/ui/color_popup.cpp
index edcfe90ce..a21f2188c 100644
--- a/src/app/ui/color_popup.cpp
+++ b/src/app/ui/color_popup.cpp
@@ -19,6 +19,7 @@
 #include "app/context_access.h"
 #include "app/doc.h"
 #include "app/file/palette_file.h"
+#include "app/i18n/strings.h"
 #include "app/modules/gfx.h"
 #include "app/modules/gui.h"
 #include "app/modules/palettes.h"
@@ -179,7 +180,7 @@ ColorPopup::ColorPopup(const ColorButtonOptions& options)
                    nullptr)
   , m_simpleColors(nullptr)
   , m_oldAndNew(Shade(2), ColorShades::ClickEntries)
-  , m_maskLabel("Transparent Color Selected")
+  , m_maskLabel(Strings::color_popup_transparent_color_sel())
   , m_canPin(options.canPinSelector)
   , m_insideChange(false)
   , m_disableHexUpdate(false)
@@ -196,7 +197,7 @@ ColorPopup::ColorPopup(const ColorButtonOptions& options)
       m_simpleColors = new SimpleColors(this, &m_tooltips);
   }
 
-  ButtonSet::Item* item = m_colorType.addItem("Index");
+  ButtonSet::Item* item = m_colorType.addItem(Strings::color_popup_index());
   item->setFocusStop(false);
   if (!options.showIndexTab)
     item->setVisible(false);
diff --git a/src/app/ui/color_wheel.cpp b/src/app/ui/color_wheel.cpp
index 6cb906a37..e1e0a96df 100644
--- a/src/app/ui/color_wheel.cpp
+++ b/src/app/ui/color_wheel.cpp
@@ -12,6 +12,7 @@
 #include "app/ui/color_wheel.h"
 
 #include "app/color_utils.h"
+#include "app/i18n/strings.h"
 #include "app/pref/preferences.h"
 #include "app/ui/skin/skin_theme.h"
 #include "app/ui/status_bar.h"
@@ -474,15 +475,15 @@ void ColorWheel::onResize(ui::ResizeEvent& ev)
 void ColorWheel::onOptions()
 {
   Menu menu;
-  MenuItem discrete("Discrete");
-  MenuItem none("Without Harmonies");
-  MenuItem complementary("Complementary");
-  MenuItem monochromatic("Monochromatic");
-  MenuItem analogous("Analogous");
-  MenuItem split("Split-Complementary");
-  MenuItem triadic("Triadic");
-  MenuItem tetradic("Tetradic");
-  MenuItem square("Square");
+  MenuItem discrete(Strings::color_wheel_discrete());
+  MenuItem none(Strings::color_wheel_no_harmonies());
+  MenuItem complementary(Strings::color_wheel_complementary());
+  MenuItem monochromatic(Strings::color_wheel_monochromatic());
+  MenuItem analogous(Strings::color_wheel_analogous());
+  MenuItem split(Strings::color_wheel_split_complementary());
+  MenuItem triadic(Strings::color_wheel_triadic());
+  MenuItem tetradic(Strings::color_wheel_tetradic());
+  MenuItem square(Strings::color_wheel_square());
   menu.addChild(&discrete);
   if (m_colorModel != ColorModel::NORMAL_MAP) {
     menu.addChild(new MenuSeparator);
diff --git a/src/app/ui/context_bar.cpp b/src/app/ui/context_bar.cpp
index 995cabdda..743ef31cf 100644
--- a/src/app/ui/context_bar.cpp
+++ b/src/app/ui/context_bar.cpp
@@ -97,8 +97,8 @@ public:
   ZoomButtons()
     : ButtonSet(3) {
     addItem("100%");
-    addItem("Center");
-    addItem("Fit Screen");
+    addItem(Strings::context_bar_center());
+    addItem(Strings::context_bar_fit_screen());
   }
 
 private:
@@ -142,7 +142,7 @@ class ContextBar::BrushBackField : public ButtonSet {
 public:
   BrushBackField()
     : ButtonSet(1) {
-    addItem("Back");
+    addItem(Strings::context_bar_back());
   }
 
 protected:
@@ -294,9 +294,9 @@ public:
     // brush when we call ComboBox::addItem() (because the first
     // addItem() generates an onChange() event).
     m_lock = true;
-    addItem("Pattern aligned to source");
-    addItem("Pattern aligned to destination");
-    addItem("Paint brush");
+    addItem(Strings::context_bar_pattern_aligned_to_src());
+    addItem(Strings::context_bar_pattern_aligned_to_dest());
+    addItem(Strings::context_bar_paint_brush());
     m_lock = false;
 
     setSelectedItemIndex((int)Preferences::instance().brush.pattern());
@@ -356,7 +356,8 @@ protected:
 
 class ContextBar::ContiguousField : public CheckBox {
 public:
-  ContiguousField() : CheckBox("Contiguous") {
+  ContiguousField()
+    : CheckBox(Strings::context_bar_contiguous()) {
     initTheme();
   }
 
@@ -393,16 +394,16 @@ protected:
 
     Menu menu;
     MenuItem
-      stopAtGrid("Stop at Grid"),
-      activeLayer("Refer only active layer"),
-      allLayers("Refer visible layers");
+      stopAtGrid(Strings::context_bar_stop_at_grid()),
+      activeLayer(Strings::context_bar_refer_active_layer()),
+      allLayers(Strings::context_bar_refer_visible_layer());
     menu.addChild(&stopAtGrid);
     menu.addChild(new MenuSeparator());
     menu.addChild(&activeLayer);
     menu.addChild(&allLayers);
 
     menu.addChild(new MenuSeparator);
-    menu.addChild(new Label("Pixel Connectivity:"));
+    menu.addChild(new Label(Strings::context_bar_pixel_connectivity()));
 
     HBox box;
     ButtonSet buttonset(2);
@@ -525,7 +526,7 @@ public:
     addChild(&m_button);
     addChild(&m_shade);
 
-    m_shade.setText("Select colors in the palette");
+    m_shade.setText(Strings::context_bar_select_palette_color());
     m_shade.setMinColors(2);
     m_conn = colorBar->ChangeSelection.connect(
       [this]{ onChangeColorBarSelection(); });
@@ -582,8 +583,8 @@ private:
 
     Menu menu;
     MenuItem
-      reverse("Reverse Shade"),
-      save("Save Shade");
+      reverse(Strings::context_bar_reverse_shade()),
+      save(Strings::context_bar_save_shade());
     menu.addChild(&reverse);
     menu.addChild(&save);
 
@@ -786,8 +787,10 @@ public:
 
     onOpaqueChange();
 
-    tooltipManager->addTooltipFor(m_icon.at(0), "Transparent Color Options", BOTTOM);
-    tooltipManager->addTooltipFor(&m_maskColor, "Transparent Color", BOTTOM);
+    tooltipManager->addTooltipFor(
+      m_icon.at(0), Strings::context_bar_transparent_color_options(), BOTTOM);
+    tooltipManager->addTooltipFor(
+      &m_maskColor, Strings::context_bar_transparent_color(), BOTTOM);
   }
 
 private:
@@ -797,9 +800,9 @@ private:
 
     Menu menu;
     MenuItem
-      opaque("Opaque"),
-      masked("Transparent"),
-      automatic("Adjust automatically depending on layer type");
+      opaque(Strings::context_bar_opaque()),
+      masked(Strings::context_bar_transparent()),
+      automatic(Strings::context_bar_auto_adjust_layer());
     menu.addChild(&opaque);
     menu.addChild(&masked);
     menu.addChild(new MenuSeparator);
@@ -878,7 +881,7 @@ private:
     gfx::Rect bounds = this->bounds();
 
     Menu menu;
-    CheckBox visible("Display pivot by default");
+    CheckBox visible(Strings::context_bar_default_display_pivot());
     HBox box;
     ButtonSet buttonset(3);
     buttonset.addItem(theme->parts.pivotNorthwest());
@@ -945,8 +948,10 @@ public:
     // algorithm when we call ComboBox::addItem() (because the first
     // addItem() generates an onChange() event).
     m_lockChange = true;
-    addItem(new Item("Fast Rotation", tools::RotationAlgorithm::FAST));
-    addItem(new Item("RotSprite", tools::RotationAlgorithm::ROTSPRITE));
+    addItem(
+      new Item(Strings::context_bar_fast_rotation(), tools::RotationAlgorithm::FAST));
+    addItem(
+      new Item(Strings::context_bar_rotsprite(), tools::RotationAlgorithm::ROTSPRITE));
     m_lockChange = false;
 
     setSelectedItemIndex((int)Preferences::instance().selection.rotationAlgorithm());
@@ -1219,7 +1224,9 @@ private:
 
 class ContextBar::FreehandAlgorithmField : public CheckBox {
 public:
-  FreehandAlgorithmField() : CheckBox("Pixel-perfect") {
+  FreehandAlgorithmField()
+    : CheckBox(Strings::context_bar_pixel_perfect())
+  {
     initTheme();
   }
 
@@ -1277,8 +1284,10 @@ public:
   }
 
   void setupTooltips(TooltipManager* tooltipManager) {
-    tooltipManager->addTooltipFor(at(0), "Linear Gradient", BOTTOM);
-    tooltipManager->addTooltipFor(at(1), "Radial Gradient", BOTTOM);
+    tooltipManager->addTooltipFor(
+      at(0), Strings::context_bar_linear_gradient(), BOTTOM);
+    tooltipManager->addTooltipFor(
+      at(1), Strings::context_bar_radial_gradient(), BOTTOM);
   }
 
   render::GradientType gradientType() const {
@@ -1298,8 +1307,8 @@ public:
 
   void setupTooltips(TooltipManager* tooltipManager) {
     // TODO Enter and Esc should be configurable keys
-    tooltipManager->addTooltipFor(at(0), "Drop pixels here (Enter)", BOTTOM);
-    tooltipManager->addTooltipFor(at(1), "Cancel drag and drop (Esc)", BOTTOM);
+    tooltipManager->addTooltipFor(at(0), Strings::context_bar_drop_pixel(), BOTTOM);
+    tooltipManager->addTooltipFor(at(1), Strings::context_bar_cancel_drag(), BOTTOM);
   }
 
   obs::signal<void(ContextBarObserver::DropAction)> DropPixels;
@@ -1329,15 +1338,15 @@ public:
     m_channel.addItem("HSL");
     m_channel.addItem("Gray+Alpha");
     m_channel.addItem("Gray");
-    m_channel.addItem("Best fit Index");
+    m_channel.addItem(Strings::context_bar_best_fit_index());
 
-    m_sample.addItem("All Layers");
-    m_sample.addItem("Current Layer");
-    m_sample.addItem("First Reference Layer");
+    m_sample.addItem(Strings::context_bar_all_layers());
+    m_sample.addItem(Strings::context_bar_current_layer());
+    m_sample.addItem(Strings::context_bar_first_ref_layer());
 
-    addChild(new Label("Pick:"));
+    addChild(new Label(Strings::context_bar_pick()));
     addChild(&m_channel);
-    addChild(new Label("Sample:"));
+    addChild(new Label(Strings::context_bar_sample()));
     addChild(&m_sample);
 
     m_channel.Change.connect([this]{ onChannelChange(); });
@@ -1366,7 +1375,9 @@ private:
 
 class ContextBar::AutoSelectLayerField : public CheckBox {
 public:
-  AutoSelectLayerField() : CheckBox("Auto Select Layer") {
+  AutoSelectLayerField()
+    : CheckBox(Strings::context_bar_auto_select_layer())
+  {
     initTheme();
   }
 
@@ -1521,8 +1532,8 @@ public:
   {
     auto theme = SkinTheme::get(this);
 
-    m_sel.addItem("All");
-    m_sel.addItem("None");
+    m_sel.addItem(Strings::context_bar_all());
+    m_sel.addItem(Strings::context_bar_none());
     m_sel.ItemChange.connect(
       [this](ButtonSet::Item* item){
         onSelAction(m_sel.selectedItem());
@@ -1548,10 +1559,14 @@ public:
   }
 
   void setupTooltips(TooltipManager* tooltipManager) {
-    tooltipManager->addTooltipFor(m_sel.at(0), "Select All Slices", BOTTOM);
-    tooltipManager->addTooltipFor(m_sel.at(1), "Deselect Slices", BOTTOM);
-    tooltipManager->addTooltipFor(m_action.at(0), "Slice Properties", BOTTOM);
-    tooltipManager->addTooltipFor(m_action.at(1), "Delete Slice", BOTTOM);
+    tooltipManager->addTooltipFor(
+      m_sel.at(0), Strings::context_bar_select_slices(), BOTTOM);
+    tooltipManager->addTooltipFor(
+      m_sel.at(1), Strings::context_bar_deselect_slices(), BOTTOM);
+    tooltipManager->addTooltipFor(
+      m_action.at(0), Strings::context_bar_slice_props(), BOTTOM);
+    tooltipManager->addTooltipFor(
+      m_action.at(1), Strings::context_bar_delete_slice(), BOTTOM);
   }
 
   void setDoc(Doc* doc) {
@@ -2448,26 +2463,38 @@ const tools::DynamicsOptions& ContextBar::getDynamics() const
 
 void ContextBar::setupTooltips(TooltipManager* tooltipManager)
 {
-  tooltipManager->addTooltipFor(m_brushBack->at(0), "Discard Brush (Esc)", BOTTOM);
-  tooltipManager->addTooltipFor(m_brushType->at(0), "Brush Type", BOTTOM);
-  tooltipManager->addTooltipFor(m_brushSize, "Brush Size (in pixels)", BOTTOM);
-  tooltipManager->addTooltipFor(m_brushAngle, "Brush Angle (in degrees)", BOTTOM);
-  tooltipManager->addTooltipFor(m_inkType->at(0), "Ink", BOTTOM);
-  tooltipManager->addTooltipFor(m_inkOpacity, "Opacity (paint intensity)", BOTTOM);
-  tooltipManager->addTooltipFor(m_inkShades->at(0), "Shades", BOTTOM);
-  tooltipManager->addTooltipFor(m_sprayWidth, "Spray Width", BOTTOM);
-  tooltipManager->addTooltipFor(m_spraySpeed, "Spray Speed", BOTTOM);
-  tooltipManager->addTooltipFor(m_pivot->at(0), "Rotation Pivot", BOTTOM);
-  tooltipManager->addTooltipFor(m_rotAlgo, "Rotation Algorithm", BOTTOM);
-  tooltipManager->addTooltipFor(m_dynamics->at(0), "Dynamics", BOTTOM);
+  tooltipManager->addTooltipFor(
+    m_brushBack->at(0), Strings::context_bar_discard_brush(), BOTTOM);
+  tooltipManager->addTooltipFor(
+    m_brushType->at(0), Strings::context_bar_brush_type(), BOTTOM);
+  tooltipManager->addTooltipFor(
+    m_brushSize, Strings::context_bar_brush_size(), BOTTOM);
+  tooltipManager->addTooltipFor(
+    m_brushAngle, Strings::context_bar_brush_angle(), BOTTOM);
+  tooltipManager->addTooltipFor(
+    m_inkType->at(0), Strings::context_bar_ink(), BOTTOM);
+  tooltipManager->addTooltipFor(
+    m_inkOpacity, Strings::context_bar_opacity(), BOTTOM);
+  tooltipManager->addTooltipFor(
+    m_inkShades->at(0), Strings::context_bar_shades(), BOTTOM);
+  tooltipManager->addTooltipFor(
+    m_sprayWidth, Strings::context_bar_spray_width(), BOTTOM);
+  tooltipManager->addTooltipFor(
+    m_spraySpeed, Strings::context_bar_spray_speed(), BOTTOM);
+  tooltipManager->addTooltipFor(
+    m_pivot->at(0), Strings::context_bar_rotation_pivot(), BOTTOM);
+  tooltipManager->addTooltipFor(
+    m_rotAlgo, Strings::context_bar_rotation_algorithm(), BOTTOM);
+  tooltipManager->addTooltipFor(
+    m_dynamics->at(0), Strings::context_bar_dynamics(), BOTTOM);
   tooltipManager->addTooltipFor(m_freehandAlgo,
                                 key_tooltip("Freehand trace algorithm",
                                             CommandId::PixelPerfectMode()), BOTTOM);
   tooltipManager->addTooltipFor(m_contiguous,
                                 key_tooltip("Fill contiguous areas color",
                                             CommandId::ContiguousFill()), BOTTOM);
-  tooltipManager->addTooltipFor(m_paintBucketSettings->at(0),
-                                "Extra paint bucket options", BOTTOM);
+  tooltipManager->addTooltipFor(
+    m_paintBucketSettings->at(0), Strings::context_bar_paint_bucket_option(), BOTTOM);
 
   m_selectionMode->setupTooltips(tooltipManager);
   m_gradientType->setupTooltips(tooltipManager);
diff --git a/src/app/ui/dithering_selector.cpp b/src/app/ui/dithering_selector.cpp
index 21de48680..54f7c9e80 100644
--- a/src/app/ui/dithering_selector.cpp
+++ b/src/app/ui/dithering_selector.cpp
@@ -13,6 +13,7 @@
 
 #include "app/app.h"
 #include "app/extensions.h"
+#include "app/i18n/strings.h"
 #include "app/modules/palettes.h"
 #include "app/ui/skin/skin_theme.h"
 #include "app/util/conversion_to_surface.h"
@@ -206,29 +207,30 @@ void DitheringSelector::regenerate()
   switch (m_type) {
     case SelectBoth:
       addItem(new DitherItem(render::DitheringAlgorithm::None,
-                             render::DitheringMatrix(), "No Dithering"));
+                             render::DitheringMatrix(),
+                             Strings::dithering_selector_no_dithering()));
       for (const auto& it : ditheringMatrices) {
-        addItem(
-          new DitherItem(
-            render::DitheringAlgorithm::Ordered,
-            it.matrix(),
-            "Ordered Dithering+" + it.name()));
+        addItem(new DitherItem(
+          render::DitheringAlgorithm::Ordered,
+          it.matrix(),
+          Strings::dithering_selector_ordered_dithering() + it.name()));
       }
       for (const auto& it : ditheringMatrices) {
         addItem(
           new DitherItem(
             render::DitheringAlgorithm::Old,
             it.matrix(),
-            "Old Dithering+" + it.name()));
+            Strings::dithering_selector_old_dithering() + it.name()));
       }
       addItem(
         new DitherItem(
           render::DitheringAlgorithm::ErrorDiffusion,
           render::DitheringMatrix(),
-          "Floyd-Steinberg Error Diffusion Dithering"));
+          Strings::dithering_selector_floyd_steinberg()));
       break;
     case SelectMatrix:
-      addItem(new DitherItem(render::DitheringMatrix(), "No Dithering"));
+      addItem(new DitherItem(render::DitheringMatrix(),
+                             Strings::dithering_selector_no_dithering()));
       for (auto& it : ditheringMatrices)
         addItem(new DitherItem(it.matrix(), it.name()));
       break;
diff --git a/src/app/ui/editor/editor.cpp b/src/app/ui/editor/editor.cpp
index a649c472a..619aee24d 100644
--- a/src/app/ui/editor/editor.cpp
+++ b/src/app/ui/editor/editor.cpp
@@ -2798,7 +2798,7 @@ void Editor::showAnimationSpeedMultiplierPopup(Option<bool>& playOnce,
   Menu menu;
 
   for (double option : options) {
-    MenuItem* item = new MenuItem(fmt::format("Speed x{}", option));
+    MenuItem* item = new MenuItem(fmt::format(Strings::preview_speed_x(), option));
     item->Click.connect([this, option]{ setAnimationSpeedMultiplier(option); });
     item->setSelected(m_aniSpeed == option);
     menu.addChild(item);
@@ -2808,7 +2808,7 @@ void Editor::showAnimationSpeedMultiplierPopup(Option<bool>& playOnce,
 
   // Play once option
   {
-    MenuItem* item = new MenuItem("Play Once");
+    MenuItem* item = new MenuItem(Strings::preview_play_once());
     item->Click.connect(
       [&playOnce]() {
         playOnce(!playOnce());
@@ -2819,7 +2819,7 @@ void Editor::showAnimationSpeedMultiplierPopup(Option<bool>& playOnce,
 
   // Play all option
   {
-    MenuItem* item = new MenuItem("Play All Frames (Ignore Tags)");
+    MenuItem* item = new MenuItem(Strings::preview_play_all_no_tags());
     item->Click.connect(
       [&playAll]() {
         playAll(!playAll());
@@ -2829,7 +2829,7 @@ void Editor::showAnimationSpeedMultiplierPopup(Option<bool>& playOnce,
   }
 
   if (withStopBehaviorOptions) {
-    MenuItem* item = new MenuItem("Rewind on Stop");
+    MenuItem* item = new MenuItem(Strings::preview_rewind_on_stop());
     item->Click.connect(
       []() {
         // Switch the "rewind_on_stop" option
diff --git a/src/app/ui/editor/pixels_movement.cpp b/src/app/ui/editor/pixels_movement.cpp
index 6784aa122..7c6168dba 100644
--- a/src/app/ui/editor/pixels_movement.cpp
+++ b/src/app/ui/editor/pixels_movement.cpp
@@ -19,6 +19,7 @@
 #include "app/console.h"
 #include "app/doc.h"
 #include "app/doc_api.h"
+#include "app/i18n/strings.h"
 #include "app/modules/gui.h"
 #include "app/pref/preferences.h"
 #include "app/site.h"
@@ -1170,8 +1171,9 @@ retry:;      // In case that we don't have enough memory for RotSprite
           int(corners.leftBottom().y-leftTop.y));
       }
       catch (const std::bad_alloc&) {
-        StatusBar::instance()->showTip(1000,
-          "Not enough memory for RotSprite");
+        StatusBar::instance()->showTip(
+          1000,
+          Strings::statusbar_tips_not_enough_rotsprite_memory());
 
         rotAlgo = tools::RotationAlgorithm::FAST;
         goto retry;
diff --git a/src/app/ui/editor/standby_state.cpp b/src/app/ui/editor/standby_state.cpp
index 6ae1cc377..fbce4fb5c 100644
--- a/src/app/ui/editor/standby_state.cpp
+++ b/src/app/ui/editor/standby_state.cpp
@@ -180,12 +180,14 @@ bool StandbyState::onMouseDown(Editor* editor, MouseMessage* msg)
     if (layer) {
       // TODO we should be able to move the `Background' with tiled mode
       if (layer->isBackground()) {
-        StatusBar::instance()->showTip(1000,
-          "The background layer cannot be moved");
+        StatusBar::instance()->showTip(
+          1000, Strings::statusbar_tips_cannot_move_bg_layer());
       }
       else if (!layer->isVisibleHierarchy()) {
         StatusBar::instance()->showTip(
-          1000, fmt::format("Layer '{}' is hidden", layer->name()));
+          1000,
+          fmt::format(Strings::statusbar_tips_layer_x_is_hidden(),
+                      layer->name()));
       }
       else if (!layer->isMovable() || !layer->isEditableHierarchy()) {
         StatusBar::instance()->showTip(
@@ -195,7 +197,7 @@ bool StandbyState::onMouseDown(Editor* editor, MouseMessage* msg)
         MovingCelCollect collect(editor, layer);
         if (collect.empty()) {
           StatusBar::instance()->showTip(
-            1000, "Nothing to move");
+            1000, Strings::statusbar_tips_nothing_to_move());
         }
         else {
           try {
@@ -211,7 +213,7 @@ bool StandbyState::onMouseDown(Editor* editor, MouseMessage* msg)
           catch (const LockedDocException&) {
             // TODO break the background task that is locking this sprite
             StatusBar::instance()->showTip(
-              1000, "Sprite is used by a backup/data recovery task");
+              1000, Strings::statusbar_tips_recovery_task_using_sprite());
           }
         }
       }
@@ -748,7 +750,8 @@ void StandbyState::transformSelection(Editor* editor, MouseMessage* msg, HandleT
   Layer* layer = editor->layer();
   if (layer && layer->isReference()) {
     StatusBar::instance()->showTip(
-      1000, fmt::format("Layer '{}' is reference, cannot be transformed",
+      1000,
+      fmt::format(Strings::statusbar_tips_non_transformable_reference_layer(),
                         layer->name()));
     return;
   }
@@ -803,11 +806,13 @@ void StandbyState::transformSelection(Editor* editor, MouseMessage* msg, HandleT
     // Other editor is locking the document.
 
     // TODO steal the PixelsMovement of the other editor and use it for this one.
-    StatusBar::instance()->showTip(1000, "The sprite is locked in other editor");
+    StatusBar::instance()->showTip(
+      1000, Strings::statusbar_tips_sprite_locked_somewhere());
     editor->showMouseCursor(kForbiddenCursor);
   }
   catch (const std::bad_alloc&) {
-    StatusBar::instance()->showTip(1000, "Not enough memory to transform the selection");
+    StatusBar::instance()->showTip(
+      1000, Strings::statusbar_tips_not_enough_transform_memory());
     editor->showMouseCursor(kForbiddenCursor);
   }
 }
diff --git a/src/app/ui/editor/tool_loop_impl.cpp b/src/app/ui/editor/tool_loop_impl.cpp
index 539870085..85c843ffa 100644
--- a/src/app/ui/editor/tool_loop_impl.cpp
+++ b/src/app/ui/editor/tool_loop_impl.cpp
@@ -818,12 +818,14 @@ tools::ToolLoop* create_tool_loop(
     Layer* layer = site.layer();
     if (!layer) {
       StatusBar::instance()->showTip(
-        1000, "There is no active layer");
+        1000, Strings::statusbar_tips_no_active_layers());
       return nullptr;
     }
     else if (!layer->isVisibleHierarchy()) {
       StatusBar::instance()->showTip(
-        1000, fmt::format("Layer '{}' is hidden", layer->name()));
+        1000,
+        fmt::format(Strings::statusbar_tips_layer_x_is_hidden(),
+                    layer->name()));
       return nullptr;
     }
     // If the active layer is read-only.
@@ -833,7 +835,9 @@ tools::ToolLoop* create_tool_loop(
     // If the active layer is reference.
     else if (layer->isReference()) {
       StatusBar::instance()->showTip(
-        1000, fmt::format("Layer '{}' is reference, cannot be modified", layer->name()));
+        1000,
+        fmt::format(Strings::statusbar_tips_unmodifiable_reference_layer(),
+                    layer->name()));
       return nullptr;
     }
   }
diff --git a/src/app/ui/file_selector.cpp b/src/app/ui/file_selector.cpp
index 700e47998..b2f8801f4 100644
--- a/src/app/ui/file_selector.cpp
+++ b/src/app/ui/file_selector.cpp
@@ -485,7 +485,8 @@ bool FileSelector::show(
 
   // File type for all formats
   fileType()->addItem(
-    new CustomFileExtensionItem("All formats", allExtensions));
+    new CustomFileExtensionItem(Strings::file_selector_all_formats(),
+                                allExtensions));
 
   // One file type for each supported image format
   for (const auto& e : allExtensions) {
@@ -499,7 +500,7 @@ bool FileSelector::show(
   }
   // All files
   fileType()->addItem(
-    new CustomFileExtensionItem("All files",
+    new CustomFileExtensionItem(Strings::file_selector_all_files(),
                                 base::paths())); // Empty extensions means "*.*"
 
   // file name entry field
diff --git a/src/app/ui/font_popup.cpp b/src/app/ui/font_popup.cpp
index 450444d66..9dbfebda1 100644
--- a/src/app/ui/font_popup.cpp
+++ b/src/app/ui/font_popup.cpp
@@ -15,6 +15,7 @@
 #include "app/commands/commands.h"
 #include "app/console.h"
 #include "app/font_path.h"
+#include "app/i18n/strings.h"
 #include "app/match_words.h"
 #include "app/ui/search_entry.h"
 #include "app/ui/skin/skin_theme.h"
@@ -133,7 +134,7 @@ private:
 };
 
 FontPopup::FontPopup()
-  : PopupWindow("Fonts",
+  : PopupWindow(Strings::font_popup_title(),
                 ClickBehavior::CloseOnClickInOtherWindow,
                 EnterBehavior::DoNothingOnEnter)
   , m_popup(new gen::FontPopup())
@@ -181,7 +182,7 @@ FontPopup::FontPopup()
   }
 
   if (m_listBox.children().empty())
-    m_listBox.addChild(new ListItem("No system fonts were found"));
+    m_listBox.addChild(new ListItem(Strings::font_popup_empty_fonts()));
 }
 
 void FontPopup::showPopup(Display* display,
diff --git a/src/app/ui/keyboard_shortcuts.cpp b/src/app/ui/keyboard_shortcuts.cpp
index 5b6de243c..e83f444d1 100644
--- a/src/app/ui/keyboard_shortcuts.cpp
+++ b/src/app/ui/keyboard_shortcuts.cpp
@@ -15,9 +15,9 @@
 #include "app/app_menus.h"
 #include "app/commands/command.h"
 #include "app/commands/commands.h"
-#include "app/commands/commands.h"
 #include "app/commands/params.h"
 #include "app/doc.h"
+#include "app/i18n/strings.h"
 #include "app/tools/active_tool.h"
 #include "app/tools/ink.h"
 #include "app/tools/tool.h"
@@ -36,41 +36,51 @@
 
 #define XML_KEYBOARD_FILE_VERSION "1"
 
+#define I18N_KEY(a) app::Strings::keyboard_shortcuts_##a()
+
 namespace {
 
-  static struct {
+  struct KeyShortcutAction {
     const char* name;
-    const char* userfriendly;
+    std::string userfriendly;
     app::KeyAction action;
     app::KeyContext context;
-  } actions[] = {
-    { "CopySelection"       , "Copy Selection"     , app::KeyAction::CopySelection, app::KeyContext::TranslatingSelection },
-    { "SnapToGrid"          , "Snap To Grid"       , app::KeyAction::SnapToGrid, app::KeyContext::TranslatingSelection },
-    { "LockAxis"            , "Lock Axis"          , app::KeyAction::LockAxis, app::KeyContext::TranslatingSelection },
-    { "FineControl"         , "Fine Translating"   , app::KeyAction::FineControl , app::KeyContext::TranslatingSelection },
-    { "MaintainAspectRatio" , "Maintain Aspect Ratio", app::KeyAction::MaintainAspectRatio, app::KeyContext::ScalingSelection },
-    { "ScaleFromCenter"     , "Scale From Center"  , app::KeyAction::ScaleFromCenter, app::KeyContext::ScalingSelection },
-    { "FineControl"         , "Fine Scaling"       , app::KeyAction::FineControl , app::KeyContext::ScalingSelection },
-    { "AngleSnap"           , "Angle Snap"         , app::KeyAction::AngleSnap, app::KeyContext::RotatingSelection },
-    { "AddSelection"        , "Add Selection"      , app::KeyAction::AddSelection, app::KeyContext::SelectionTool },
-    { "SubtractSelection"   , "Subtract Selection" , app::KeyAction::SubtractSelection, app::KeyContext::SelectionTool },
-    { "IntersectSelection"  , "Intersect Selection" , app::KeyAction::IntersectSelection, app::KeyContext::SelectionTool },
-    { "AutoSelectLayer"     , "Auto Select Layer"  , app::KeyAction::AutoSelectLayer, app::KeyContext::MoveTool },
-    { "StraightLineFromLastPoint", "Straight Line from Last Point", app::KeyAction::StraightLineFromLastPoint, app::KeyContext::FreehandTool },
-    { "AngleSnapFromLastPoint", "Angle Snap from Last Point", app::KeyAction::AngleSnapFromLastPoint, app::KeyContext::FreehandTool },
-    { "MoveOrigin"          , "Move Origin"        , app::KeyAction::MoveOrigin, app::KeyContext::ShapeTool },
-    { "SquareAspect"        , "Square Aspect"      , app::KeyAction::SquareAspect, app::KeyContext::ShapeTool },
-    { "DrawFromCenter"      , "Draw From Center"   , app::KeyAction::DrawFromCenter, app::KeyContext::ShapeTool },
-    { "RotateShape"         , "Rotate Shape"       , app::KeyAction::RotateShape, app::KeyContext::ShapeTool },
-    { "LeftMouseButton"     , "Trigger Left Mouse Button" , app::KeyAction::LeftMouseButton, app::KeyContext::Any },
-    { "RightMouseButton"    , "Trigger Right Mouse Button" , app::KeyAction::RightMouseButton, app::KeyContext::Any },
-    { NULL                  , NULL                 , app::KeyAction::None, app::KeyContext::Any }
   };
 
+  static std::vector<KeyShortcutAction> g_actions;
+
+  static const std::vector<KeyShortcutAction>& actions() {
+    if (g_actions.empty()) {
+      g_actions = std::vector<KeyShortcutAction> {
+        { "CopySelection"       , I18N_KEY(copy_selection)             , app::KeyAction::CopySelection, app::KeyContext::TranslatingSelection },
+        { "SnapToGrid"          , I18N_KEY(snap_to_grid)               , app::KeyAction::SnapToGrid, app::KeyContext::TranslatingSelection },
+        { "LockAxis"            , I18N_KEY(lock_axis)                  , app::KeyAction::LockAxis, app::KeyContext::TranslatingSelection },
+        { "FineControl"         , I18N_KEY(fine_translating)           , app::KeyAction::FineControl , app::KeyContext::TranslatingSelection },
+        { "MaintainAspectRatio" , I18N_KEY(maintain_aspect_ratio)      , app::KeyAction::MaintainAspectRatio, app::KeyContext::ScalingSelection },
+        { "ScaleFromCenter"     , I18N_KEY(scale_from_center)          , app::KeyAction::ScaleFromCenter, app::KeyContext::ScalingSelection },
+        { "FineControl"         , I18N_KEY(fine_scaling)               , app::KeyAction::FineControl , app::KeyContext::ScalingSelection },
+        { "AngleSnap"           , I18N_KEY(angle_snap)                 , app::KeyAction::AngleSnap, app::KeyContext::RotatingSelection },
+        { "AddSelection"        , I18N_KEY(add_selection)              , app::KeyAction::AddSelection, app::KeyContext::SelectionTool },
+        { "SubtractSelection"   , I18N_KEY(subtract_selection)         , app::KeyAction::SubtractSelection, app::KeyContext::SelectionTool },
+        { "IntersectSelection"  , I18N_KEY(intersect_selection)        , app::KeyAction::IntersectSelection, app::KeyContext::SelectionTool },
+        { "AutoSelectLayer"     , I18N_KEY(auto_select_layer)          , app::KeyAction::AutoSelectLayer, app::KeyContext::MoveTool },
+        { "StraightLineFromLastPoint", I18N_KEY(line_from_last_point)  , app::KeyAction::StraightLineFromLastPoint, app::KeyContext::FreehandTool },
+        { "AngleSnapFromLastPoint", I18N_KEY(angle_from_last_point)    , app::KeyAction::AngleSnapFromLastPoint, app::KeyContext::FreehandTool },
+        { "MoveOrigin"          , I18N_KEY(move_origin)                , app::KeyAction::MoveOrigin, app::KeyContext::ShapeTool },
+        { "SquareAspect"        , I18N_KEY(square_aspect)              , app::KeyAction::SquareAspect, app::KeyContext::ShapeTool },
+        { "DrawFromCenter"      , I18N_KEY(draw_from_center)           , app::KeyAction::DrawFromCenter, app::KeyContext::ShapeTool },
+        { "RotateShape"         , I18N_KEY(rotate_shape)               , app::KeyAction::RotateShape, app::KeyContext::ShapeTool },
+        { "LeftMouseButton"     , I18N_KEY(trigger_left_mouse_button)  , app::KeyAction::LeftMouseButton, app::KeyContext::Any },
+        { "RightMouseButton"    , I18N_KEY(trigger_right_mouse_button) , app::KeyAction::RightMouseButton, app::KeyContext::Any }
+      };
+    }
+    return g_actions;
+  }
+
   static struct {
     const char* name;
     app::KeyContext context;
-  } contexts[] = {
+  } g_contexts[] = {
     { ""                     , app::KeyContext::Any },
     { "Normal"               , app::KeyContext::Normal },
     { "Selection"            , app::KeyContext::SelectionTool },
@@ -85,38 +95,47 @@ namespace {
 
   using Vec = app::DragVector;
 
-  static struct {
+  struct KeyShortcutWheelAction {
     const char* name;
-    const char* userfriendly;
+    const std::string userfriendly;
     Vec vector;
-  } wheel_actions[] = {
-    { ""             , ""                         , Vec(0.0, 0.0) },
-    { "Zoom"         , "Zoom"                     , Vec(8.0, 0.0) },
-    { "VScroll"      , "Scroll: Vertically"       , Vec(4.0, 0.0) },
-    { "HScroll"      , "Scroll: Horizontally"     , Vec(4.0, 0.0) },
-    { "FgColor"      , "Color: Foreground Palette Entry" , Vec(8.0, 0.0) },
-    { "BgColor"      , "Color: Background Palette Entry" , Vec(8.0, 0.0) },
-    { "FgTile"       , "Tile: Foreground Tile Entry" , Vec(8.0, 0.0) },
-    { "BgTile"       , "Tile: Background Tile Entry" , Vec(8.0, 0.0) },
-    { "Frame"        , "Change Frame"             , Vec(16.0, 0.0) },
-    { "BrushSize"    , "Change Brush Size"        , Vec(4.0, 0.0) },
-    { "BrushAngle"   , "Change Brush Angle"       , Vec(-4.0, 0.0) },
-    { "ToolSameGroup"  , "Change Tool (same group)" , Vec(8.0, 0.0) },
-    { "ToolOtherGroup" , "Change Tool"            , Vec(0.0, -8.0) },
-    { "Layer"        , "Change Layer"             , Vec(0.0, 8.0) },
-    { "InkType"      , "Change Ink Type"          , Vec(0.0, -16.0) },
-    { "InkOpacity"   , "Change Ink Opacity"       , Vec(0.0, 1.0) },
-    { "LayerOpacity" , "Change Layer Opacity"     , Vec(0.0, 1.0) },
-    { "CelOpacity"   , "Change Cel Opacity"       , Vec(0.0, 1.0) },
-    { "Alpha"        , "Color: Alpha"             , Vec(4.0, 0.0) },
-    { "HslHue"       , "Color: HSL Hue"           , Vec(1.0, 0.0) },
-    { "HslSaturation", "Color: HSL Saturation"    , Vec(4.0, 0.0) },
-    { "HslLightness" , "Color: HSL Lightness"     , Vec(0.0, 4.0) },
-    { "HsvHue"       , "Color: HSV Hue"           , Vec(1.0, 0.0) },
-    { "HsvSaturation", "Color: HSV Saturation"    , Vec(4.0, 0.0) },
-    { "HsvValue"     , "Color: HSV Value"         , Vec(0.0, 4.0) },
   };
 
+  static std::vector<KeyShortcutWheelAction> g_wheel_actions;
+
+  static const std::vector<KeyShortcutWheelAction>& wheel_actions() {
+    if (g_wheel_actions.empty()) {
+      g_wheel_actions = std::vector<KeyShortcutWheelAction> {
+        { ""              , ""                               , Vec(0.0, 0.0) },
+        { "Zoom"          , I18N_KEY(zoom)                   , Vec(8.0, 0.0) },
+        { "VScroll"       , I18N_KEY(scroll_vertically)      , Vec(4.0, 0.0) },
+        { "HScroll"       , I18N_KEY(scroll_horizontally)    , Vec(4.0, 0.0) },
+        { "FgColor"       , I18N_KEY(fg_color)               , Vec(8.0, 0.0) },
+        { "BgColor"       , I18N_KEY(bg_color)               , Vec(8.0, 0.0) },
+        { "FgTile"        , I18N_KEY(fg_tile)                , Vec(8.0, 0.0) },
+        { "BgTile"        , I18N_KEY(bg_tile)                , Vec(8.0, 0.0) },
+        { "Frame"         , I18N_KEY(change_frame)           , Vec(16.0, 0.0) },
+        { "BrushSize"     , I18N_KEY(change_brush_size)      , Vec(4.0, 0.0) },
+        { "BrushAngle"    , I18N_KEY(change_brush_angle)     , Vec(-4.0, 0.0) },
+        { "ToolSameGroup" , I18N_KEY(change_tool_same_group) , Vec(8.0, 0.0) },
+        { "ToolOtherGroup", I18N_KEY(change_tool)            , Vec(0.0, -8.0) },
+        { "Layer"         , I18N_KEY(change_layer)           , Vec(0.0, 8.0) },
+        { "InkType"       , I18N_KEY(change_ink_type)        , Vec(0.0, -16.0) },
+        { "InkOpacity"    , I18N_KEY(change_ink_opacity)     , Vec(0.0, 1.0) },
+        { "LayerOpacity"  , I18N_KEY(change_layer_opacity)   , Vec(0.0, 1.0) },
+        { "CelOpacity"    , I18N_KEY(change_cel_opacity)     , Vec(0.0, 1.0) },
+        { "Alpha"         , I18N_KEY(color_alpha)            , Vec(4.0, 0.0) },
+        { "HslHue"        , I18N_KEY(color_hsl_hue)          , Vec(1.0, 0.0) },
+        { "HslSaturation" , I18N_KEY(color_hsl_saturation)   , Vec(4.0, 0.0) },
+        { "HslLightness"  , I18N_KEY(color_hsl_lightness)    , Vec(0.0, 4.0) },
+        { "HsvHue"        , I18N_KEY(color_hsv_hue)          , Vec(1.0, 0.0) },
+        { "HsvSaturation" , I18N_KEY(color_hsv_saturation)   , Vec(4.0, 0.0) },
+        { "HsvValue"      , I18N_KEY(color_hsv_value)        , Vec(0.0, 4.0) }
+      };
+    }
+    return g_wheel_actions;
+  }
+
   const char* get_shortcut(TiXmlElement* elem) {
     const char* shortcut = NULL;
 
@@ -136,10 +155,9 @@ namespace {
 
   std::string get_user_friendly_string_for_keyaction(app::KeyAction action,
                                                      app::KeyContext context) {
-    for (int c=0; actions[c].name; ++c) {
-      if (action == actions[c].action &&
-          context == actions[c].context)
-        return actions[c].userfriendly;
+    for (const auto& a : actions()) {
+      if (action == a.action && context == a.context)
+        return a.userfriendly;
     }
     return std::string();
   }
@@ -148,7 +166,7 @@ namespace {
     int c = int(wheelAction);
     if (c >= int(app::WheelAction::First) &&
         c <= int(app::WheelAction::Last)) {
-      return wheel_actions[c].userfriendly;
+      return wheel_actions()[c].userfriendly;
     }
     else
       return std::string();
@@ -185,26 +203,25 @@ namespace {
 namespace base {
 
   template<> app::KeyAction convert_to(const std::string& from) {
-    app::KeyAction action = app::KeyAction::None;
-    for (int c=0; actions[c].name; ++c) {
-      if (from == actions[c].name)
-        return actions[c].action;
+    for (const auto& a : actions()) {
+      if (from == a.name)
+        return a.action;
     }
-    return action;
+    return app::KeyAction::None;
   }
 
   template<> std::string convert_to(const app::KeyAction& from) {
-    for (int c=0; actions[c].name; ++c) {
-      if (from == actions[c].action)
-        return actions[c].name;
+    for (const auto& a : actions()) {
+      if (from == a.action)
+        return a.name;
     }
-    return "";
+    return std::string();
   }
 
   template<> app::WheelAction convert_to(const std::string& from) {
     for (int c=int(app::WheelAction::First);
             c<=int(app::WheelAction::Last); ++c) {
-      if (from == wheel_actions[c].name)
+      if (from == wheel_actions()[c].name)
         return (app::WheelAction)c;
     }
     return app::WheelAction::None;
@@ -214,24 +231,24 @@ namespace base {
     int c = int(from);
     if (c >= int(app::WheelAction::First) &&
         c <= int(app::WheelAction::Last)) {
-      return wheel_actions[c].name;
+      return wheel_actions()[c].name;
     }
     else
       return std::string();
   }
 
   template<> app::KeyContext convert_to(const std::string& from) {
-    for (int c=0; contexts[c].name; ++c) {
-      if (from == contexts[c].name)
-        return contexts[c].context;
+    for (int c=0; g_contexts[c].name; ++c) {
+      if (from == g_contexts[c].name)
+        return g_contexts[c].context;
     }
     return app::KeyContext::Any;
   }
 
   template<> std::string convert_to(const app::KeyContext& from) {
-    for (int c=0; contexts[c].name; ++c) {
-      if (from == contexts[c].context)
-        return contexts[c].name;
+    for (int c=0; g_contexts[c].name; ++c) {
+      if (from == g_contexts[c].context)
+        return g_contexts[c].name;
     }
     return std::string();
   }
@@ -358,7 +375,7 @@ KeyPtr Key::MakeDragAction(WheelAction dragAction)
   KeyPtr k(new Key(dragAction));
   k->m_type = KeyType::DragAction;
   k->m_keycontext = KeyContext::Any;
-  k->m_dragVector = wheel_actions[(int)dragAction].vector;
+  k->m_dragVector = wheel_actions()[(int)dragAction].vector;
   return k;
 }
 
@@ -554,6 +571,12 @@ void KeyboardShortcuts::destroyInstance()
 
 KeyboardShortcuts::KeyboardShortcuts()
 {
+  ASSERT(Strings::instance());
+  Strings::instance()->LanguageChange.connect([]{
+    // Clear collections so they are re-constructed with the new language
+    g_actions.clear();
+    g_wheel_actions.clear();
+  });
 }
 
 KeyboardShortcuts::~KeyboardShortcuts()
@@ -1300,21 +1323,21 @@ std::string convertKeyContextToUserFriendlyString(KeyContext keyContext)
     case KeyContext::Any:
       return std::string();
     case KeyContext::Normal:
-      return "Normal";
+      return I18N_KEY(key_context_normal);
     case KeyContext::SelectionTool:
-      return "Selection";
+      return I18N_KEY(key_context_selection);
     case KeyContext::TranslatingSelection:
-      return "Translating Selection";
+      return I18N_KEY(key_context_translating_selection);
     case KeyContext::ScalingSelection:
-      return "Scaling Selection";
+      return I18N_KEY(key_context_scaling_selection);
     case KeyContext::RotatingSelection:
-      return "Rotating Selection";
+      return I18N_KEY(key_context_rotating_selection);
     case KeyContext::MoveTool:
-      return "Move Tool";
+      return I18N_KEY(key_context_move_tool);
     case KeyContext::FreehandTool:
-      return "Freehand Tool";
+      return I18N_KEY(key_context_freehand_tool);
     case KeyContext::ShapeTool:
-      return "Shape Tool";
+      return I18N_KEY(key_context_shape_tool);
   }
   return std::string();
 }
diff --git a/src/app/ui/layer_frame_comboboxes.cpp b/src/app/ui/layer_frame_comboboxes.cpp
index 122fd891e..495e8c08f 100644
--- a/src/app/ui/layer_frame_comboboxes.cpp
+++ b/src/app/ui/layer_frame_comboboxes.cpp
@@ -11,6 +11,7 @@
 
 #include "app/ui/layer_frame_comboboxes.h"
 
+#include "app/i18n/strings.h"
 #include "app/restore_visible_layers.h"
 #include "app/site.h"
 #include "doc/anidir.h"
@@ -56,12 +57,15 @@ std::string LayerListItem::buildName(const doc::Layer* layer)
     name.insert(0, layer->name());
     layer = layer->parent();
   }
-  name.insert(0, isGroup ? "Group: ": "Layer: ");
+  const std::string namePrefix =
+    (isGroup ? Strings::layer_combo_group() :
+               Strings::layer_combo_layer()) + " ";
+  name.insert(0, namePrefix);
   return name;
 }
 
 FrameListItem::FrameListItem(doc::Tag* tag)
-  : ListItem("Tag: " + tag->name())
+  : ListItem(Strings::frame_combo_tag() + " " + tag->name())
   , m_tag(tag)
 {
   setValue(m_tag->name());
@@ -89,10 +93,10 @@ void fill_area_combobox(const doc::Sprite* sprite, ui::ComboBox* area, const std
 
 void fill_layers_combobox(const doc::Sprite* sprite, ui::ComboBox* layers, const std::string& defLayer, const int defLayerIndex)
 {
-  int i = layers->addItem("Visible layers");
+  int i = layers->addItem(Strings::layer_combo_visible_layers());
   dynamic_cast<ui::ListItem*>(layers->getItem(i))->setValue(kAllLayers);
 
-  i = layers->addItem("Selected layers");
+  i = layers->addItem(Strings::layer_combo_selected_layers());
   dynamic_cast<ui::ListItem*>(layers->getItem(i))->setValue(kSelectedLayers);
   if (defLayer == kSelectedLayers)
     layers->setSelectedItemIndex(i);
@@ -113,10 +117,10 @@ void fill_layers_combobox(const doc::Sprite* sprite, ui::ComboBox* layers, const
 
 void fill_frames_combobox(const doc::Sprite* sprite, ui::ComboBox* frames, const std::string& defFrame)
 {
-  int i = frames->addItem("All frames");
+  int i = frames->addItem(Strings::frame_combo_all_frames());
   dynamic_cast<ui::ListItem*>(frames->getItem(i))->setValue(kAllFrames);
 
-  i = frames->addItem("Selected frames");
+  i = frames->addItem(Strings::frame_combo_selected_frames());
   dynamic_cast<ui::ListItem*>(frames->getItem(i))->setValue(kSelectedFrames);
   if (defFrame == kSelectedFrames)
     frames->setSelectedItemIndex(i);
@@ -139,9 +143,9 @@ void fill_anidir_combobox(ui::ComboBox* anidir, doc::AniDir defAnidir)
     int(doc::AniDir::REVERSE) == 1 &&
     int(doc::AniDir::PING_PONG) == 2, "doc::AniDir has changed");
 
-  anidir->addItem("Forward");
-  anidir->addItem("Reverse");
-  anidir->addItem("Ping-pong");
+  anidir->addItem(Strings::anidir_combo_forward());
+  anidir->addItem(Strings::anidir_combo_reverse());
+  anidir->addItem(Strings::anidir_combo_ping_pong());
   anidir->setSelectedItemIndex(int(defAnidir));
 }
 
diff --git a/src/app/ui/main_window.cpp b/src/app/ui/main_window.cpp
index 743bfaf33..6f0aa9b1c 100644
--- a/src/app/ui/main_window.cpp
+++ b/src/app/ui/main_window.cpp
@@ -13,6 +13,7 @@
 
 #include "app/app.h"
 #include "app/app_menus.h"
+#include "app/commands/command.h"
 #include "app/commands/commands.h"
 #include "app/crash/data_recovery.h"
 #include "app/i18n/strings.h"
@@ -159,12 +160,7 @@ MainWindow::MainWindow()
 
   // When the language is change, we reload the menu bar strings and
   // relayout the whole main window.
-  Strings::instance()->LanguageChange.connect(
-    [this]{
-      m_menuBar->reload();
-      layout();
-      invalidate();
-    });
+  Strings::instance()->LanguageChange.connect([this] { onLanguageChange(); });
 }
 
 MainWindow::~MainWindow()
@@ -203,6 +199,22 @@ MainWindow::~MainWindow()
   m_menuBar->setMenu(NULL);
 }
 
+void MainWindow::onLanguageChange()
+{
+  auto commands = Commands::instance();
+  std::vector<std::string> commandIDs;
+  commands->getAllIds(commandIDs);
+
+  for (const auto& commandID : commandIDs) {
+    Command* command = commands->byId(commandID.c_str());
+    command->generateFriendlyName();
+  }
+
+  m_menuBar->reload();
+  layout();
+  invalidate();
+}
+
 DocView* MainWindow::getDocView()
 {
   return dynamic_cast<DocView*>(m_workspace->activeView());
diff --git a/src/app/ui/main_window.h b/src/app/ui/main_window.h
index 5db196870..ff3c2a1ee 100644
--- a/src/app/ui/main_window.h
+++ b/src/app/ui/main_window.h
@@ -116,6 +116,7 @@ namespace app {
     void onSaveLayout(ui::SaveLayoutEvent& ev) override;
     void onResize(ui::ResizeEvent& ev) override;
     void onActiveViewChange();
+    void onLanguageChange();
 
   private:
     DocView* getDocView();
diff --git a/src/app/ui/news_listbox.cpp b/src/app/ui/news_listbox.cpp
index 0f6ccbb97..0d95941a2 100644
--- a/src/app/ui/news_listbox.cpp
+++ b/src/app/ui/news_listbox.cpp
@@ -12,6 +12,7 @@
 #include "app/ui/news_listbox.h"
 
 #include "app/app.h"
+#include "app/i18n/strings.h"
 #include "app/pref/preferences.h"
 #include "app/res/http_loader.h"
 #include "app/ui/skin/skin_theme.h"
@@ -168,7 +169,8 @@ private:
 
 class ProblemsItem : public NewsItem {
 public:
-  ProblemsItem() : NewsItem("", "Problems loading news. Retry.", "") {
+  ProblemsItem()
+    : NewsItem("", Strings::news_listbox_problem_loading(), "") {
   }
 
 protected:
@@ -306,7 +308,8 @@ void NewsListBox::parseFile(const std::string& filename)
     .FirstChild("channel")
     .FirstChild("link").ToElement();
   if (linkXml && linkXml->GetText())
-    addChild(new NewsItem(linkXml->GetText(), "More...", ""));
+    addChild(
+      new NewsItem(linkXml->GetText(), Strings::news_listbox_more(), ""));
 
   if (view)
     view->updateView();
diff --git a/src/app/ui/preview_editor.cpp b/src/app/ui/preview_editor.cpp
index 62c321011..7c9c5bd64 100644
--- a/src/app/ui/preview_editor.cpp
+++ b/src/app/ui/preview_editor.cpp
@@ -16,6 +16,7 @@
 #include "app/doc_event.h"
 #include "app/ini_file.h"
 #include "app/loop_tag.h"
+#include "app/i18n/strings.h"
 #include "app/modules/editors.h"
 #include "app/modules/gui.h"
 #include "app/pref/preferences.h"
@@ -176,7 +177,7 @@ private:
 };
 
 PreviewEditorWindow::PreviewEditorWindow()
-  : Window(WithTitleBar, "Preview")
+  : Window(WithTitleBar, Strings::preview_title())
   , m_docView(NULL)
   , m_centerButton(new MiniCenterButton())
   , m_playButton(new MiniPlayButton())
diff --git a/src/app/ui/status_bar.cpp b/src/app/ui/status_bar.cpp
index 67f62f0bc..f557bf2a9 100644
--- a/src/app/ui/status_bar.cpp
+++ b/src/app/ui/status_bar.cpp
@@ -16,6 +16,7 @@
 #include "app/doc_access.h"
 #include "app/doc_event.h"
 #include "app/doc_range.h"
+#include "app/i18n/strings.h"
 #include "app/modules/editors.h"
 #include "app/modules/gfx.h"
 #include "app/modules/gui.h"
@@ -587,7 +588,7 @@ class StatusBar::SnapToGridWindow : public ui::PopupWindow {
 public:
   SnapToGridWindow()
     : ui::PopupWindow("", ClickBehavior::DoNothingOnClick)
-    , m_button("Disable Snap to Grid") {
+    , m_button(Strings::statusbar_tips_disable_snap_grid()) {
     InitTheme.connect(
       [this]{
         setBorder(gfx::Border(2 * guiscale()));
@@ -692,7 +693,7 @@ StatusBar::StatusBar(TooltipManager* tooltipManager)
     Box* box1 = new Box(HORIZONTAL);
     Box* box4 = new Box(HORIZONTAL);
 
-    m_frameLabel = new Label("Frame:");
+    m_frameLabel = new Label(Strings::statusbar_tips_frame());
     m_currentFrame = new GotoFrameEntry();
     m_newFrame = new Button("+");
     m_newFrame->Click.connect([this]{ newFrame(); });
@@ -713,9 +714,12 @@ StatusBar::StatusBar(TooltipManager* tooltipManager)
   }
 
   // Tooltips
-  tooltipManager->addTooltipFor(m_currentFrame, "Current Frame", BOTTOM);
-  tooltipManager->addTooltipFor(m_zoomEntry, "Zoom Level", BOTTOM);
-  tooltipManager->addTooltipFor(m_newFrame, "New Frame", BOTTOM);
+  tooltipManager->addTooltipFor(
+    m_currentFrame, Strings::statusbar_tips_current_frame(), BOTTOM);
+  tooltipManager->addTooltipFor(
+    m_zoomEntry, Strings::statusbar_tips_zoom_level(), BOTTOM);
+  tooltipManager->addTooltipFor(
+    m_newFrame, Strings::statusbar_tips_new_frame(), BOTTOM);
 
   App::instance()->activeToolManager()->add_observer(this);
 
diff --git a/src/app/ui/timeline/ani_controls.cpp b/src/app/ui/timeline/ani_controls.cpp
index 8d12da65b..ac9cb38dc 100644
--- a/src/app/ui/timeline/ani_controls.cpp
+++ b/src/app/ui/timeline/ani_controls.cpp
@@ -13,6 +13,7 @@
 
 #include "app/commands/command.h"
 #include "app/commands/commands.h"
+#include "app/i18n/strings.h"
 #include "app/modules/editors.h"
 #include "app/ui/editor/editor.h"
 #include "app/ui/keyboard_shortcuts.h"
@@ -124,12 +125,12 @@ std::string AniControls::getTooltipFor(int index) const
                                                    Params(),
                                                    KeyContext::Normal);
     if (key && !key->accels().empty()) {
-      tooltip += "\n\nShortcut: ";
+      tooltip += "\n\n" + Strings::ani_controls_shortcut() + " ";
       tooltip += key->accels().front().toString();
     }
 
     if (index == ACTION_PLAY) {
-      tooltip += "\n\nRight-click: Show playback options";
+      tooltip += "\n\n" + Strings::ani_controls_right_click();
     }
   }