diff --git a/data/gui.xml b/data/gui.xml
index 2bd923aa4..2b2fadd3f 100644
--- a/data/gui.xml
+++ b/data/gui.xml
@@ -18,7 +18,7 @@
       <key command="ImportSpriteSheet" shortcut="Ctrl+I" mac="Cmd+I" />
       <key command="ExportSpriteSheet" shortcut="Ctrl+E" mac="Cmd+E" />
       <key command="RepeatLastExport" shortcut="Ctrl+Shift+X" mac="Cmd+Shift+X" />
-      <key command="AdvancedMode" shortcut="F11" />
+      <key command="AdvancedMode" shortcut="F" />
       <key command="DeveloperConsole" shortcut="F12" />
       <key command="Exit" win="Ctrl+Q" linux="Ctrl+Q" mac="Cmd+Q" />
       <key command="Exit" win="Alt+F4" />
@@ -777,7 +777,8 @@
           <param name="switch" value="true" />
         </item>
         <item command="TogglePreview" text="Previe&amp;w" />
-        <item command="FullscreenPreview" text="&amp;Fullscreen Preview" />
+        <item command="AdvancedMode" text="&amp;Full Screen Mode" />
+        <item command="FullscreenPreview" text="F&amp;ull Screen Preview" />
         <item command="Home" text="&amp;Home" />
         <separator />
         <item command="Refresh" text="&amp;Refresh &amp;&amp; Reload Skin" />
diff --git a/data/palettes/edg16.gpl b/data/palettes/edg16.gpl
new file mode 100644
index 000000000..5b8d7c991
--- /dev/null
+++ b/data/palettes/edg16.gpl
@@ -0,0 +1,21 @@
+GIMP Palette
+#
+# By ENDESGA Studios
+# https://twitter.com/ENDESGA
+#
+228 166 114	Birch
+184 111  80	Oak
+116  63  57	Pine
+ 63  40  50	Darkbark
+158  40  53	Blood
+229  59  68	Fabric
+251 146  43	Candle
+255 231  98	Glow
+ 99 198  77	Flora
+ 50 115  69	Moss
+ 25  61  63	Mold
+ 79 103 129	Iron
+175 191 210	Aluminium
+255 255 255	White
+ 44 232 244	Ion
+  4 132 209	Archaeon
diff --git a/data/palettes/edg32.gpl b/data/palettes/edg32.gpl
new file mode 100644
index 000000000..d30fbb9c2
--- /dev/null
+++ b/data/palettes/edg32.gpl
@@ -0,0 +1,37 @@
+GIMP Palette
+#
+# By ENDESGA Studios
+# https://twitter.com/ENDESGA
+#
+190  74  47	Tetanus
+216 118  68	Rust
+234 212 170	Birch
+228 166 114	Sap
+184 111  80	Oak
+116  63  57	Pine
+ 63  40  50	Darkbark
+158  40  53	Blood
+228  59  68	Fabric
+247 118  34	Amber
+254 174  52	Glow
+254 231  97	Light
+ 99 199  77	Glade
+ 62 137  72	Flora
+ 38  92  66	Moss
+ 25  60  62	Mold
+ 18  78 137	Deep
+  0 149 233	Archaeon
+ 44 232 245	Ion
+255 255 255	White
+192 203 220	Aluminium
+139 155 180	Zinc
+ 90 105 136	Iron
+ 58  68 102	Steel
+ 38  43  68	Shade
+255   0  68	Iiem
+ 24  20  37	Ink
+104  56 108	Lilac
+181  80 136	Petal
+246 117 122	Peach
+232 183 150	Skin
+194 133 105	Shadeskin
diff --git a/data/pref.xml b/data/pref.xml
index 28a6db333..5b91813b2 100644
--- a/data/pref.xml
+++ b/data/pref.xml
@@ -86,6 +86,7 @@
   <global>
     <section id="general">
       <option id="screen_scale" type="int" default="0" />
+      <option id="ui_scale" type="int" default="1" migrate="experimental.ui_scale" />
       <option id="gpu_acceleration" type="bool" default="false" />
       <option id="visible_timeline" type="bool" default="false" />
       <option id="autoshow_timeline" type="bool" default="true" migrate="Options.AutoShowTimeline" />
@@ -126,7 +127,6 @@
       <option id="mini_font" type="std::string" migrate="Options.UserMiniFont" />
     </section>
     <section id="experimental" text="Experimental">
-      <option id="ui_scale" type="int" default="1" />
       <option id="use_native_file_dialog" type="bool" default="false" />
       <option id="flash_layer" type="bool" default="false" migrate="Options.FlashLayer" />
     </section>
@@ -280,6 +280,7 @@
       <option id="resize_scale" type="double" default="1" />
     </section>
     <section id="sprite_sheet">
+      <option id="defined" type="bool" default="false" />
       <option id="type" type="app::SpriteSheetType" default="app::SpriteSheetType::None" />
       <option id="columns" type="int" default="0" />
       <option id="rows" type="int" default="0" />
diff --git a/data/skins/default/skin.xml b/data/skins/default/skin.xml
index 1da076712..290f0cb40 100644
--- a/data/skins/default/skin.xml
+++ b/data/skins/default/skin.xml
@@ -192,8 +192,8 @@
     <part id="sunken_focused"                   x="0" y="48" w1="4" w2="4" w3="4" h1="4" h2="4" h3="4" />
     <part id="sunken2_normal"                   x="0" y="64" w1="5" w2="6" w3="5" h1="5" h2="6" h3="5" />
     <part id="sunken2_focused"                  x="0" y="80" w1="5" w2="6" w3="5" h1="5" h2="6" h3="5" />
-    <part id="sunken_mini_normal"               x="16" y="64" w1="4" w2="4" w3="4" h1="4" h2="4" h3="4" />
-    <part id="sunken_mini_focused"              x="16" y="80" w1="4" w2="4" w3="4" h1="4" h2="4" h3="4" />
+    <part id="sunken_mini_normal"               x="16" y="64" w1="4" w2="4" w3="4" h1="3" h2="6" h3="3" />
+    <part id="sunken_mini_focused"              x="16" y="80" w1="4" w2="4" w3="4" h1="3" h2="6" h3="3" />
     <part id="window"                           x="0" y="0" w1="3" w2="7" w3="3" h1="15" h2="4" h3="5" />
     <part id="menu"                             x="0" y="96" w1="3" w2="10" w3="3" h1="3" h2="9" h3="4" />
     <part id="window_close_button_normal"       x="16" y="0" w="9" h="11" />
@@ -212,10 +212,10 @@
     <part id="slider_empty"                     x="16" y="144" w1="5" w2="6" w3="5" h1="5" h2="5" h3="6" />
     <part id="slider_full_focused"              x="0" y="160" w1="5" w2="6" w3="5" h1="5" h2="5" h3="6" />
     <part id="slider_empty_focused"             x="16" y="160" w1="5" w2="6" w3="5" h1="5" h2="5" h3="6" />
-    <part id="mini_slider_full"                 x="32" y="144" w1="5" w2="6" w3="5" h1="5" h2="5" h3="6" />
-    <part id="mini_slider_empty"                x="48" y="144" w1="5" w2="6" w3="5" h1="5" h2="5" h3="6" />
-    <part id="mini_slider_full_focused"         x="32" y="160" w1="5" w2="6" w3="5" h1="5" h2="5" h3="6" />
-    <part id="mini_slider_empty_focused"        x="48" y="160" w1="5" w2="6" w3="5" h1="5" h2="5" h3="6" />
+    <part id="mini_slider_full"                 x="32" y="144" w1="2" w2="12" w3="2" h1="2" h2="11" h3="3" />
+    <part id="mini_slider_empty"                x="48" y="144" w1="2" w2="12" w3="2" h1="2" h2="11" h3="3" />
+    <part id="mini_slider_full_focused"         x="32" y="160" w1="2" w2="12" w3="2" h1="2" h2="11" h3="3" />
+    <part id="mini_slider_empty_focused"        x="48" y="160" w1="2" w2="12" w3="2" h1="2" h2="11" h3="3" />
     <part id="mini_slider_thumb"                x="32" y="176" w="5" h="4" />
     <part id="mini_slider_thumb_focused"        x="48" y="176" w="5" h="4" />
     <part id="separator_horz"                   x="32" y="80" w="9" h="5" />
diff --git a/src/app/commands/cmd_change_brush.cpp b/src/app/commands/cmd_change_brush.cpp
index fc52888d9..77fb64cf2 100644
--- a/src/app/commands/cmd_change_brush.cpp
+++ b/src/app/commands/cmd_change_brush.cpp
@@ -15,6 +15,7 @@
 #include "app/commands/params.h"
 #include "app/context.h"
 #include "app/pref/preferences.h"
+#include "app/tools/active_tool.h"
 #include "app/tools/tool.h"
 #include "app/ui/context_bar.h"
 #include "base/convert_to.h"
@@ -71,7 +72,9 @@ void ChangeBrushCommand::onLoadParams(const Params& params)
 
 void ChangeBrushCommand::onExecute(Context* context)
 {
-  tools::Tool* tool = App::instance()->activeTool();
+  // Change the brush of the selected tool in the toolbar (not the
+  // active tool which might be different, e.g. the quick tool)
+  tools::Tool* tool = App::instance()->activeToolManager()->selectedTool();
   ToolPreferences::Brush& brush =
     Preferences::instance().tool(tool).brush;
 
@@ -97,7 +100,7 @@ void ChangeBrushCommand::onExecute(Context* context)
       break;
     case CustomBrush:
       App::instance()->contextBar()
-        ->setActiveBrushBySlot(m_slot);
+        ->setActiveBrushBySlot(tool, m_slot);
       break;
   }
 }
diff --git a/src/app/commands/cmd_export_sprite_sheet.cpp b/src/app/commands/cmd_export_sprite_sheet.cpp
index b509703cc..4b974aa07 100644
--- a/src/app/commands/cmd_export_sprite_sheet.cpp
+++ b/src/app/commands/cmd_export_sprite_sheet.cpp
@@ -769,6 +769,7 @@ void ExportSpriteSheetCommand::onExecute(Context* context)
     if (!window.ok())
       return;
 
+    docPref.spriteSheet.defined(true);
     docPref.spriteSheet.type(window.spriteSheetTypeValue());
     docPref.spriteSheet.columns(window.columnsValue());
     docPref.spriteSheet.rows(window.rowsValue());
@@ -790,6 +791,7 @@ void ExportSpriteSheetCommand::onExecute(Context* context)
     // Default preferences for future sprites
     DocumentPreferences& defPref(Preferences::instance().document(nullptr));
     defPref.spriteSheet = docPref.spriteSheet;
+    defPref.spriteSheet.defined(false);
     if (!defPref.spriteSheet.textureFilename().empty())
       defPref.spriteSheet.textureFilename.setValueAndDefault(kSpecifiedFilename);
     if (!defPref.spriteSheet.dataFilename().empty())
diff --git a/src/app/commands/cmd_layer_properties.cpp b/src/app/commands/cmd_layer_properties.cpp
index 5bb90d961..72c7b7be1 100644
--- a/src/app/commands/cmd_layer_properties.cpp
+++ b/src/app/commands/cmd_layer_properties.cpp
@@ -168,6 +168,10 @@ private:
   }
 
   void onCommitChange() {
+    // Nothing to do here, as there is no layer selected.
+    if (!m_layer)
+      return;
+
     base::ScopedValue<bool> switchSelf(m_selfUpdate, true, false);
 
     m_timer.stop();
diff --git a/src/app/commands/cmd_mask_by_color.cpp b/src/app/commands/cmd_mask_by_color.cpp
index 7a5fb3f31..b30b7adaf 100644
--- a/src/app/commands/cmd_mask_by_color.cpp
+++ b/src/app/commands/cmd_mask_by_color.cpp
@@ -1,5 +1,5 @@
 // Aseprite
-// Copyright (C) 2001-2015  David Capello
+// Copyright (C) 2001-2016  David Capello
 //
 // This program is distributed under the terms of
 // the End-User License Agreement for Aseprite.
@@ -103,7 +103,8 @@ void MaskByColorCommand::onExecute(Context* context)
   m_buttonColor = new ColorButton
    (get_config_color("MaskColor", "Color",
                      ColorBar::instance()->getFgColor()),
-    sprite->pixelFormat());
+    sprite->pixelFormat(),
+    false);
   label_tolerance = new Label("Tolerance:");
   m_sliderTolerance = new Slider(0, 255, get_config_int("MaskColor", "Tolerance", 0));
   m_checkPreview = new CheckBox("&Preview");
diff --git a/src/app/commands/cmd_options.cpp b/src/app/commands/cmd_options.cpp
index b2638dd4c..7a800d950 100644
--- a/src/app/commands/cmd_options.cpp
+++ b/src/app/commands/cmd_options.cpp
@@ -68,11 +68,11 @@ public:
     , m_globPref(m_pref.document(nullptr))
     , m_docPref(m_pref.document(context->activeDocument()))
     , m_curPref(&m_docPref)
-    , m_checked_bg_color1(new ColorButton(app::Color::fromMask(), IMAGE_RGB))
-    , m_checked_bg_color2(new ColorButton(app::Color::fromMask(), IMAGE_RGB))
-    , m_pixelGridColor(new ColorButton(app::Color::fromMask(), IMAGE_RGB))
-    , m_gridColor(new ColorButton(app::Color::fromMask(), IMAGE_RGB))
-    , m_cursorColor(new ColorButton(m_pref.cursor.cursorColor(), IMAGE_RGB))
+    , m_checked_bg_color1(new ColorButton(app::Color::fromMask(), IMAGE_RGB, false))
+    , m_checked_bg_color2(new ColorButton(app::Color::fromMask(), IMAGE_RGB, false))
+    , m_pixelGridColor(new ColorButton(app::Color::fromMask(), IMAGE_RGB, false))
+    , m_gridColor(new ColorButton(app::Color::fromMask(), IMAGE_RGB, false))
+    , m_cursorColor(new ColorButton(m_pref.cursor.cursorColor(), IMAGE_RGB, false))
     , m_curSection(curSection)
   {
     sectionListbox()->Change.connect(base::Bind<void>(&OptionsWindow::onChangeSection, this));
@@ -173,7 +173,7 @@ public:
 
     uiScale()->setSelectedItemIndex(
       uiScale()->findItemIndexByValue(
-        base::convert_to<std::string>(m_pref.experimental.uiScale())));
+        base::convert_to<std::string>(m_pref.general.uiScale())));
 
     if ((int(she::instance()->capabilities()) &
          int(she::Capabilities::GpuAccelerationSwitch)) == int(she::Capabilities::GpuAccelerationSwitch)) {
@@ -312,8 +312,8 @@ public:
     }
 
     int newUIScale = base::convert_to<int>(uiScale()->getValue());
-    if (newUIScale != m_pref.experimental.uiScale()) {
-      m_pref.experimental.uiScale(newUIScale);
+    if (newUIScale != m_pref.general.uiScale()) {
+      m_pref.general.uiScale(newUIScale);
       warnings += "<<- UI Elements Scale";
     }
 
diff --git a/src/app/commands/cmd_repeat_last_export.cpp b/src/app/commands/cmd_repeat_last_export.cpp
index ab80da20a..b59d498b9 100644
--- a/src/app/commands/cmd_repeat_last_export.cpp
+++ b/src/app/commands/cmd_repeat_last_export.cpp
@@ -1,5 +1,5 @@
 // Aseprite
-// Copyright (C) 2001-2015  David Capello
+// Copyright (C) 2001-2016  David Capello
 //
 // This program is distributed under the terms of
 // the End-User License Agreement for Aseprite.
@@ -51,8 +51,7 @@ void RepeatLastExportCommand::onExecute(Context* context)
     DocumentPreferences& docPref =
       Preferences::instance().document(document);
 
-    params.set("ui",
-      (docPref.spriteSheet.type() == app::SpriteSheetType::None ? "1": "0"));
+    params.set("ui", (docPref.spriteSheet.defined() ? "0": "1"));
   }
 
   context->executeCommand(cmd, params);
diff --git a/src/app/commands/cmd_sprite_properties.cpp b/src/app/commands/cmd_sprite_properties.cpp
index ff1360290..12907c58c 100644
--- a/src/app/commands/cmd_sprite_properties.cpp
+++ b/src/app/commands/cmd_sprite_properties.cpp
@@ -106,7 +106,8 @@ void SpritePropertiesCommand::onExecute(Context* context)
 
     if (sprite->pixelFormat() == IMAGE_INDEXED) {
       color_button = new ColorButton(app::Color::fromIndex(sprite->transparentColor()),
-                                     IMAGE_INDEXED);
+                                     IMAGE_INDEXED,
+                                     false);
 
       window.transparentColorPlaceholder()->addChild(color_button);
     }
diff --git a/src/app/file/palette_file.cpp b/src/app/file/palette_file.cpp
index 3ae5ae218..2193cefd6 100644
--- a/src/app/file/palette_file.cpp
+++ b/src/app/file/palette_file.cpp
@@ -18,6 +18,7 @@
 #include "doc/cel.h"
 #include "doc/file/col_file.h"
 #include "doc/file/gpl_file.h"
+#include "doc/file/hex_file.h"
 #include "doc/file/pal_file.h"
 #include "doc/image.h"
 #include "doc/layer.h"
@@ -33,14 +34,14 @@ using namespace doc;
 std::string get_readable_palette_extensions()
 {
   std::string buf = get_readable_extensions();
-  buf += ",col,gpl,pal";
+  buf += ",col,gpl,hex,pal";
   return buf;
 }
 
 std::string get_writable_palette_extensions()
 {
   std::string buf = get_writable_extensions();
-  buf += ",col,gpl,pal";
+  buf += ",col,gpl,hex,pal";
   return buf;
 }
 
@@ -55,6 +56,9 @@ Palette* load_palette(const char *filename)
   else if (ext == "gpl") {
     pal = doc::file::load_gpl_file(filename);
   }
+  else if (ext == "hex") {
+    pal = doc::file::load_hex_file(filename);
+  }
   else if (ext == "pal") {
     pal = doc::file::load_pal_file(filename);
   }
@@ -101,13 +105,16 @@ bool save_palette(const char *filename, const Palette* pal, int columns)
   else if (ext == "gpl") {
     success = doc::file::save_gpl_file(pal, filename);
   }
+  else if (ext == "hex") {
+    success = doc::file::save_hex_file(pal, filename);
+  }
   else if (ext == "pal") {
     success = doc::file::save_pal_file(pal, filename);
   }
   else {
     FileFormat* ff = FileFormatsManager::instance()->getFileFormatByExtension(ext.c_str());
     if (ff && ff->support(FILE_SUPPORT_SAVE)) {
-      int w = (columns > 0 ? columns: pal->size());
+      int w = (columns > 0 ? MID(0, columns, pal->size()): pal->size());
       int h = (pal->size() / w) + (pal->size() % w > 0 ? 1: 0);
 
       app::Context tmpContext;
@@ -118,18 +125,25 @@ bool save_palette(const char *filename, const Palette* pal, int columns)
       Sprite* sprite = doc->sprite();
       doc->sprite()->setPalette(pal, false);
 
-      Layer* layer = sprite->root()->firstLayer();
+      LayerImage* layer = static_cast<LayerImage*>(sprite->root()->firstLayer());
+      layer->configureAsBackground();
+
       Image* image = layer->cel(frame_t(0))->image();
+      image->clear(0);
 
       int x, y, c;
       for (y=c=0; y<h; ++y) {
-        for (x=0; x<w; ++x, ++c) {
+        for (x=0; x<w; ++x) {
           if (doc->colorMode() == doc::ColorMode::INDEXED)
             image->putPixel(x, y, c);
           else
             image->putPixel(x, y, pal->entry(c));
+
+          if (++c == pal->size())
+            goto done;
         }
       }
+    done:;
 
       doc->setFilename(filename);
       success = (save_document(&tmpContext, doc) == 0);
diff --git a/src/app/modules/gui.cpp b/src/app/modules/gui.cpp
index 87698e8cc..5ab764a04 100644
--- a/src/app/modules/gui.cpp
+++ b/src/app/modules/gui.cpp
@@ -179,7 +179,7 @@ int init_module_gui()
 
   // Setup the GUI theme for all widgets
   gui_theme = new SkinTheme();
-  gui_theme->setScale(Preferences::instance().experimental.uiScale());
+  gui_theme->setScale(Preferences::instance().general.uiScale());
   CurrentTheme::set(gui_theme);
 
   if (maximized)
diff --git a/src/app/tools/symmetries.cpp b/src/app/tools/symmetries.cpp
index 4bcbb1f98..a2e70cca0 100644
--- a/src/app/tools/symmetries.cpp
+++ b/src/app/tools/symmetries.cpp
@@ -1,5 +1,5 @@
 // Aseprite
-// Copyright (C) 2015  David Capello
+// Copyright (C) 2015-2016  David Capello
 //
 // This program is distributed under the terms of
 // the End-User License Agreement for Aseprite.
@@ -10,6 +10,7 @@
 
 #include "app/tools/symmetries.h"
 
+#include "app/tools/point_shape.h"
 #include "app/tools/stroke.h"
 #include "app/tools/tool_loop.h"
 #include "doc/brush.h"
@@ -20,7 +21,11 @@ namespace tools {
 void HorizontalSymmetry::generateStrokes(const Stroke& mainStroke, Strokes& strokes,
                                          ToolLoop* loop)
 {
-  int adjust = (loop->getBrush()->bounds().w % 2);
+  int adjust;
+  if (loop->getPointShape()->isFloodFill())
+    adjust = 1;
+  else
+    adjust = (loop->getBrush()->bounds().w % 2);
 
   strokes.push_back(mainStroke);
 
@@ -33,7 +38,11 @@ void HorizontalSymmetry::generateStrokes(const Stroke& mainStroke, Strokes& stro
 void VerticalSymmetry::generateStrokes(const Stroke& mainStroke, Strokes& strokes,
                                        ToolLoop* loop)
 {
-  int adjust = (loop->getBrush()->bounds().h % 2);
+  int adjust;
+  if (loop->getPointShape()->isFloodFill())
+    adjust = 1;
+  else
+    adjust = (loop->getBrush()->bounds().h % 2);
 
   strokes.push_back(mainStroke);
 
diff --git a/src/app/ui/brush_popup.cpp b/src/app/ui/brush_popup.cpp
index eb63a4215..f6da99288 100644
--- a/src/app/ui/brush_popup.cpp
+++ b/src/app/ui/brush_popup.cpp
@@ -91,11 +91,11 @@ public:
 private:
   void onClick() override {
     ContextBar* contextBar = App::instance()->contextBar();
+    tools::Tool* tool = App::instance()->activeTool();
 
     if (m_slot >= 0)
-      contextBar->setActiveBrushBySlot(m_slot);
+      contextBar->setActiveBrushBySlot(tool, m_slot);
     else if (m_brush.hasBrush()) {
-      tools::Tool* tool = App::instance()->activeTool();
       auto& brushPref = Preferences::instance().tool(tool).brush;
       BrushRef brush;
 
diff --git a/src/app/ui/color_bar.cpp b/src/app/ui/color_bar.cpp
index 21738c1bb..23e847ba0 100644
--- a/src/app/ui/color_bar.cpp
+++ b/src/app/ui/color_bar.cpp
@@ -139,8 +139,8 @@ ColorBar::ColorBar(int align)
   , m_tintShadeTone(nullptr)
   , m_spectrum(nullptr)
   , m_wheel(nullptr)
-  , m_fgColor(app::Color::fromRgb(255, 255, 255), IMAGE_RGB)
-  , m_bgColor(app::Color::fromRgb(0, 0, 0), IMAGE_RGB)
+  , m_fgColor(app::Color::fromRgb(255, 255, 255), IMAGE_RGB, true)
+  , m_bgColor(app::Color::fromRgb(0, 0, 0), IMAGE_RGB, true)
   , m_fgWarningIcon(new WarningIcon)
   , m_bgWarningIcon(new WarningIcon)
   , m_lock(false)
@@ -183,12 +183,7 @@ ColorBar::ColorBar(int align)
   setColorSelector(
     Preferences::instance().colorBar.selector());
 
-  Box* buttonsBox = new HBox();
-  buttonsBox->addChild(&m_buttons);
-  m_buttons.setMaxSize(gfx::Size(m_buttons.maxSize().w,
-                                 16*ui::guiscale()));
-
-  addChild(buttonsBox);
+  addChild(&m_buttons);
   addChild(&m_splitter);
 
   HBox* fgBox = new HBox;
@@ -202,6 +197,8 @@ ColorBar::ColorBar(int align)
   addChild(fgBox);
   addChild(bgBox);
 
+  m_fgColor.setId("fg_color");
+  m_bgColor.setId("bg_color");
   m_fgColor.setExpansive(true);
   m_bgColor.setExpansive(true);
 
@@ -236,6 +233,8 @@ ColorBar::ColorBar(int align)
   m_buttons.addItem(theme->parts.palSort());
   m_buttons.addItem(theme->parts.palPresets());
   m_buttons.addItem(theme->parts.palOptions());
+  m_buttons.setMaxSize(gfx::Size(m_buttons.sizeHint().w,
+                                 16*ui::guiscale()));
 
   // Tooltips
   TooltipManager* tooltipManager = new TooltipManager();
diff --git a/src/app/ui/color_button.cpp b/src/app/ui/color_button.cpp
index 2172f48dd..bd99d41bc 100644
--- a/src/app/ui/color_button.cpp
+++ b/src/app/ui/color_button.cpp
@@ -25,6 +25,7 @@
 #include "doc/layer.h"
 #include "doc/site.h"
 #include "doc/sprite.h"
+#include "gfx/rect_io.h"
 #include "ui/size_hint_event.h"
 #include "ui/ui.h"
 
@@ -41,12 +42,15 @@ static WidgetType colorbutton_type()
   return type;
 }
 
-ColorButton::ColorButton(const app::Color& color, PixelFormat pixelFormat)
+ColorButton::ColorButton(const app::Color& color,
+                         PixelFormat pixelFormat,
+                         bool canPinSelector)
   : ButtonBase("", colorbutton_type(), kButtonWidget, kButtonWidget)
   , m_color(color)
   , m_pixelFormat(pixelFormat)
   , m_window(NULL)
   , m_dependOnLayer(false)
+  , m_canPinSelector(canPinSelector)
 {
   this->setFocusStop(true);
 
@@ -102,6 +106,13 @@ bool ColorButton::onProcessMessage(Message* msg)
 {
   switch (msg->type()) {
 
+    case kOpenMessage:
+      if (!m_windowDefaultBounds.isEmpty() &&
+          this->isVisible()) {
+        openSelectorDialog();
+      }
+      break;
+
     case kCloseMessage:
       if (m_window && m_window->isVisible())
         m_window->closeWindow(NULL);
@@ -233,34 +244,65 @@ void ColorButton::onClick(Event& ev)
   }
 }
 
+void ColorButton::onLoadLayout(ui::LoadLayoutEvent& ev)
+{
+  if (m_canPinSelector) {
+    bool pinned = false;
+    ev.stream() >> pinned;
+    if (ev.stream() && pinned)
+      ev.stream() >> m_windowDefaultBounds;
+  }
+}
+
+void ColorButton::onSaveLayout(ui::SaveLayoutEvent& ev)
+{
+  if (m_canPinSelector && m_window && m_window->isPinned())
+    ev.stream() << 1 << ' ' << m_window->bounds();
+  else
+    ev.stream() << 0;
+}
+
 void ColorButton::openSelectorDialog()
 {
-  int x, y;
+  bool pinned = (!m_windowDefaultBounds.isEmpty());
 
   if (m_window == NULL) {
-    m_window = new ColorPopup();
+    m_window = new ColorPopup(m_canPinSelector);
     m_window->ColorChange.connect(&ColorButton::onWindowColorChange, this);
   }
 
+  if (pinned)
+    m_window->setPinned(true);
+
   m_window->setColor(m_color, ColorPopup::ChangeType);
   m_window->openWindow();
 
-  x = MID(0, bounds().x, ui::display_w()-m_window->bounds().w);
-  if (bounds().y2() <= ui::display_h()-m_window->bounds().h)
-    y = MAX(0, bounds().y2());
-  else
-    y = MAX(0, bounds().y-m_window->bounds().h);
-
-  m_window->positionWindow(x, y);
+  gfx::Rect winBounds = m_windowDefaultBounds;
+  if (!pinned) {
+    winBounds = gfx::Rect(m_window->bounds().origin(),
+                          m_window->sizeHint());
+    winBounds.x = MID(0, bounds().x, ui::display_w()-winBounds.w);
+    if (bounds().y2() <= ui::display_h()-winBounds.h)
+      winBounds.y = MAX(0, bounds().y2());
+    else
+      winBounds.y = MAX(0, bounds().y-winBounds.h);
+  }
+  winBounds.x = MID(0, winBounds.x, ui::display_w()-winBounds.w);
+  winBounds.y = MID(0, winBounds.y, ui::display_h()-winBounds.h);
+  m_window->setBounds(winBounds);
 
   m_window->manager()->dispatchMessages();
   m_window->layout();
 
   // Setup the hot-region
-  gfx::Rect rc = bounds().createUnion(m_window->bounds());
-  rc.enlarge(8);
-  gfx::Region rgn(rc);
-  static_cast<PopupWindow*>(m_window)->setHotRegion(rgn);
+  if (!pinned) {
+    gfx::Rect rc = bounds().createUnion(m_window->bounds());
+    rc.enlarge(8);
+    gfx::Region rgn(rc);
+    static_cast<PopupWindow*>(m_window)->setHotRegion(rgn);
+  }
+
+  m_windowDefaultBounds = gfx::Rect();
 }
 
 void ColorButton::closeSelectorDialog()
@@ -278,6 +320,24 @@ void ColorButton::onActiveSiteChange(const Site& site)
 {
   if (m_dependOnLayer)
     invalidate();
+
+  if (m_canPinSelector) {
+    // Hide window
+    if (!site.document()) {
+      if (m_window)
+        m_window->setVisible(false);
+    }
+    // Show window if it's pinned
+    else {
+      // Check if it's pinned from the preferences (m_windowDefaultBounds)
+      if (!m_window && !m_windowDefaultBounds.isEmpty())
+        openSelectorDialog();
+      // Or check if the window was hidden but it's pinned, so we've
+      // to show it again.
+      else if (m_window && m_window->isPinned())
+        m_window->setVisible(true);
+    }
+  }
 }
 
 } // namespace app
diff --git a/src/app/ui/color_button.h b/src/app/ui/color_button.h
index ec223d000..46c990d5f 100644
--- a/src/app/ui/color_button.h
+++ b/src/app/ui/color_button.h
@@ -22,7 +22,9 @@ namespace app {
                     , public doc::ContextObserver
                     , public IColorSource {
   public:
-    ColorButton(const app::Color& color, PixelFormat pixelFormat);
+    ColorButton(const app::Color& color,
+                PixelFormat pixelFormat,
+                bool canPinSelector);
     ~ColorButton();
 
     PixelFormat pixelFormat() const;
@@ -43,6 +45,8 @@ namespace app {
     void onSizeHint(ui::SizeHintEvent& ev) override;
     void onPaint(ui::PaintEvent& ev) override;
     void onClick(ui::Event& ev) override;
+    void onLoadLayout(ui::LoadLayoutEvent& ev) override;
+    void onSaveLayout(ui::SaveLayoutEvent& ev) override;
 
   private:
     void openSelectorDialog();
@@ -53,7 +57,9 @@ namespace app {
     app::Color m_color;
     PixelFormat m_pixelFormat;
     ColorPopup* m_window;
+    gfx::Rect m_windowDefaultBounds;
     bool m_dependOnLayer;
+    bool m_canPinSelector;
   };
 
 } // namespace app
diff --git a/src/app/ui/color_popup.cpp b/src/app/ui/color_popup.cpp
index 357053037..979f2e108 100644
--- a/src/app/ui/color_popup.cpp
+++ b/src/app/ui/color_popup.cpp
@@ -47,7 +47,7 @@ enum {
   MASK_MODE
 };
 
-ColorPopup::ColorPopup()
+ColorPopup::ColorPopup(bool canPin)
   : PopupWindowPin("Color Selector", ClickBehavior::CloseOnClickInOtherWindow)
   , m_vbox(VERTICAL)
   , m_topBox(HORIZONTAL)
@@ -55,6 +55,7 @@ ColorPopup::ColorPopup()
   , m_colorPalette(false, PaletteView::SelectOneColor, this, 7*guiscale())
   , m_colorType(5)
   , m_maskLabel("Transparent Color Selected")
+  , m_canPin(canPin)
   , m_disableHexUpdate(false)
 {
   m_colorType.addItem("Index");
@@ -69,6 +70,9 @@ ColorPopup::ColorPopup()
   m_colorPaletteContainer.attachToView(&m_colorPalette);
 
   m_colorPaletteContainer.setExpansive(true);
+  m_rgbSliders.setExpansive(true);
+  m_hsvSliders.setExpansive(true);
+  m_graySlider.setExpansive(true);
 
   m_topBox.addChild(&m_colorType);
   m_topBox.addChild(new Separator("", VERTICAL));
@@ -94,6 +98,9 @@ ColorPopup::ColorPopup()
   m_graySlider.ColorChange.connect(&ColorPopup::onColorSlidersChange, this);
   m_hexColorEntry.ColorChange.connect(&ColorPopup::onColorHexEntryChange, this);
 
+  if (!m_canPin)
+    showPin(false);
+
   selectColorType(app::Color::RgbType);
   setSizeHint(gfx::Size(300*guiscale(), sizeHint().h));
 
@@ -132,6 +139,26 @@ app::Color ColorPopup::getColor() const
   return m_color;
 }
 
+void ColorPopup::onMakeFloating()
+{
+  PopupWindowPin::onMakeFloating();
+
+  if (m_canPin) {
+    setSizeable(true);
+    setMoveable(true);
+  }
+}
+
+void ColorPopup::onMakeFixed()
+{
+  PopupWindowPin::onMakeFixed();
+
+  if (m_canPin) {
+    setSizeable(false);
+    setMoveable(true);
+  }
+}
+
 void ColorPopup::onPaletteViewIndexChange(int index, ui::MouseButtons buttons)
 {
   setColorWithSignal(app::Color::fromIndex(index));
diff --git a/src/app/ui/color_popup.h b/src/app/ui/color_popup.h
index c6967ddf7..fc9899d45 100644
--- a/src/app/ui/color_popup.h
+++ b/src/app/ui/color_popup.h
@@ -31,7 +31,7 @@ namespace app {
       DoNotChangeType
     };
 
-    ColorPopup();
+    ColorPopup(bool canPin);
     ~ColorPopup();
 
     void setColor(const app::Color& color, SetColorOptions options);
@@ -41,6 +41,8 @@ namespace app {
     base::Signal1<void, const app::Color&> ColorChange;
 
   protected:
+    void onMakeFloating() override;
+    void onMakeFixed() override;
     void onColorSlidersChange(ColorSlidersChangeEvent& ev);
     void onColorHexEntryChange(const app::Color& color);
     void onColorTypeClick();
@@ -66,6 +68,7 @@ namespace app {
     GraySlider m_graySlider;
     ui::Label m_maskLabel;
     base::ScopedConnection m_onPaletteChangeConn;
+    bool m_canPin;
 
     // This variable is used to avoid updating the m_hexColorEntry text
     // when the color change is generated from a
diff --git a/src/app/ui/color_sliders.cpp b/src/app/ui/color_sliders.cpp
index edd58695e..08adfaf44 100644
--- a/src/app/ui/color_sliders.cpp
+++ b/src/app/ui/color_sliders.cpp
@@ -68,6 +68,7 @@ namespace {
             color = color_utils::color_for_ui(app::Color::fromHsv(m_color.getHue(), m_color.getSaturation(), 100 * x / w));
             break;
           case ColorSliders::Gray:
+          case ColorSliders::Alpha:
             color = color_utils::color_for_ui(app::Color::fromGray(255 * x / w));
             break;
         }
@@ -163,9 +164,9 @@ void ColorSliders::addSlider(Channel channel, const char* labelText, int min, in
   box->setMaxSize(sz);
   entry->setMaxSize(sz);
 
-  m_grid.addChildInCell(label,  1, 1, LEFT | MIDDLE);
-  m_grid.addChildInCell(box, 1, 1, HORIZONTAL | VERTICAL | EXPANSIVE);
-  m_grid.addChildInCell(entry,  1, 1, LEFT | MIDDLE);
+  m_grid.addChildInCell(label, 1, 1, LEFT | MIDDLE);
+  m_grid.addChildInCell(box,   1, 1, HORIZONTAL | VERTICAL);
+  m_grid.addChildInCell(entry, 1, 1, LEFT | MIDDLE);
 }
 
 void ColorSliders::setAbsSliderValue(int sliderIndex, int value)
diff --git a/src/app/ui/color_sliders.h b/src/app/ui/color_sliders.h
index 6707a4133..e3a052f01 100644
--- a/src/app/ui/color_sliders.h
+++ b/src/app/ui/color_sliders.h
@@ -1,5 +1,5 @@
 // Aseprite
-// Copyright (C) 2001-2015  David Capello
+// Copyright (C) 2001-2016  David Capello
 //
 // This program is distributed under the terms of
 // the End-User License Agreement for Aseprite.
@@ -45,7 +45,7 @@ namespace app {
     base::Signal1<void, ColorSlidersChangeEvent&> ColorChange;
 
   protected:
-    void onSizeHint(ui::SizeHintEvent& ev);
+    void onSizeHint(ui::SizeHintEvent& ev) override;
 
     // For derived classes
     void addSlider(Channel channel, const char* labelText, int min, int max);
diff --git a/src/app/ui/context_bar.cpp b/src/app/ui/context_bar.cpp
index 7ad3b416a..5f8a1165f 100644
--- a/src/app/ui/context_bar.cpp
+++ b/src/app/ui/context_bar.cpp
@@ -886,7 +886,7 @@ class ContextBar::TransparentColorField : public HBox {
 public:
   TransparentColorField(ContextBar* owner)
     : m_icon(1)
-    , m_maskColor(app::Color::fromMask(), IMAGE_RGB)
+    , m_maskColor(app::Color::fromMask(), IMAGE_RGB, false)
     , m_owner(owner) {
     SkinTheme* theme = SkinTheme::instance();
 
@@ -1700,14 +1700,17 @@ void ContextBar::updateAutoSelectLayer(bool state)
   m_autoSelectLayer->setSelected(state);
 }
 
-void ContextBar::setActiveBrushBySlot(int slot)
+void ContextBar::setActiveBrushBySlot(tools::Tool* tool, int slot)
 {
+  ASSERT(tool);
+  if (!tool)
+    return;
+
   AppBrushes& brushes = App::instance()->brushes();
   BrushSlot brush = brushes.getBrushSlot(slot);
   if (!brush.isEmpty()) {
     brushes.lockBrushSlot(slot);
 
-    Tool* tool = App::instance()->activeTool();
     Preferences& pref = Preferences::instance();
     ToolPreferences& toolPref = pref.tool(tool);
     ToolPreferences::Brush& brushPref = toolPref.brush;
@@ -1752,7 +1755,7 @@ void ContextBar::setActiveBrushBySlot(int slot)
          tools::FreehandAlgorithm::REGULAR));
   }
   else {
-    updateForTool(App::instance()->activeTool());
+    updateForTool(tool);
     m_brushType->showPopupAndHighlightSlot(slot);
   }
 }
diff --git a/src/app/ui/context_bar.h b/src/app/ui/context_bar.h
index 9e8157cd9..18f186f97 100644
--- a/src/app/ui/context_bar.h
+++ b/src/app/ui/context_bar.h
@@ -54,7 +54,7 @@ namespace app {
     void updateAutoSelectLayer(bool state);
 
     void setActiveBrush(const doc::BrushRef& brush);
-    void setActiveBrushBySlot(int slot);
+    void setActiveBrushBySlot(tools::Tool* tool, int slot);
     doc::BrushRef activeBrush(tools::Tool* tool = nullptr) const;
     void discardActiveBrush();
 
diff --git a/src/app/ui/editor/moving_pixels_state.cpp b/src/app/ui/editor/moving_pixels_state.cpp
index 5ca5b5ed6..440438cfd 100644
--- a/src/app/ui/editor/moving_pixels_state.cpp
+++ b/src/app/ui/editor/moving_pixels_state.cpp
@@ -198,11 +198,28 @@ void MovingPixelsState::onActiveToolChange(Editor* editor, tools::Tool* tool)
 
   // If the user changed the tool when he/she is moving pixels,
   // we have to drop the pixels only if the new tool is not selection...
-  if (m_pixelsMovement &&
-      (!tool->getInk(0)->isSelection() ||
-       !tool->getInk(1)->isSelection())) {
-    // We have to drop pixels
-    dropPixels();
+  if (m_pixelsMovement) {
+    // We don't want to drop pixels in case the user change the tool
+    // for scrolling/zooming/picking colors.
+    if ((!tool->getInk(0)->isSelection() ||
+         !tool->getInk(1)->isSelection()) &&
+        (!tool->getInk(0)->isScrollMovement() ||
+         !tool->getInk(1)->isScrollMovement()) &&
+        (!tool->getInk(0)->isZoom() ||
+         !tool->getInk(1)->isZoom()) &&
+        (!tool->getInk(0)->isEyedropper() ||
+         !tool->getInk(1)->isEyedropper())) {
+      // We have to drop pixels
+      dropPixels();
+    }
+    // If we've temporarily gone to a non-selection tool and now we're
+    // back, we've just to update the context bar to show the "moving
+    // pixels" controls (e.g. OK/Cancel movement buttons).
+    else if (tool->getInk(0)->isSelection() ||
+             tool->getInk(1)->isSelection()) {
+      ContextBar* contextBar = App::instance()->contextBar();
+      contextBar->updateForMovingPixels();
+    }
   }
 }
 
@@ -477,8 +494,13 @@ void MovingPixelsState::onBeforeCommandExecution(CommandExecutionEvent& ev)
       return;
     }
   }
+  // Don't drop pixels if the user zooms/scrolls/picks a color
+  // using commands.
   else if ((command->id() == CommandId::Zoom) ||
-           (command->id() == CommandId::Scroll)) {
+           (command->id() == CommandId::Scroll) ||
+           (command->id() == CommandId::Eyedropper) ||
+           // DiscardBrush is used by Eyedropper command
+           (command->id() == CommandId::DiscardBrush)) {
     // Do not drop pixels
     return;
   }
diff --git a/src/app/ui/font_popup.cpp b/src/app/ui/font_popup.cpp
index aa0f45dc3..8c89f9d06 100644
--- a/src/app/ui/font_popup.cpp
+++ b/src/app/ui/font_popup.cpp
@@ -1,5 +1,5 @@
 // Aseprite
-// Copyright (C) 2001-2015  David Capello
+// Copyright (C) 2001-2016  David Capello
 //
 // This program is distributed under the terms of
 // the End-User License Agreement for Aseprite.
@@ -88,8 +88,8 @@ private:
     }
   }
 
-  void onSelect() override {
-    if (m_image)
+  void onSelect(bool selected) override {
+    if (!selected || m_image)
       return;
 
     ListBox* listbox = static_cast<ListBox*>(parent());
diff --git a/src/app/ui/hex_color_entry.cpp b/src/app/ui/hex_color_entry.cpp
index db2ebe7c0..66a6b6ea6 100644
--- a/src/app/ui/hex_color_entry.cpp
+++ b/src/app/ui/hex_color_entry.cpp
@@ -1,5 +1,5 @@
 // Aseprite
-// Copyright (C) 2001-2015  David Capello
+// Copyright (C) 2001-2016  David Capello
 //
 // This program is distributed under the terms of
 // the End-User License Agreement for Aseprite.
@@ -12,6 +12,7 @@
 #include <string>
 
 #include "app/ui/hex_color_entry.h"
+#include "base/hex.h"
 #include "gfx/border.h"
 #include "ui/theme.h"
 
@@ -19,13 +20,6 @@ namespace app {
 
 using namespace ui;
 
-static inline bool is_hex_digit(char digit)
-{
-  return ((digit >= '0' && digit <= '9') ||
-          (digit >= 'a' && digit <= 'f') ||
-          (digit >= 'A' && digit <= 'F'));
-}
-
 HexColorEntry::HexColorEntry()
   : Box(HORIZONTAL)
   , m_label("#")
@@ -56,7 +50,7 @@ void HexColorEntry::onEntryChange()
   int r, g, b;
 
   // Remove non hex digits
-  while (text.size() > 0 && !is_hex_digit(text[0]))
+  while (text.size() > 0 && !base::is_hex_digit(text[0]))
     text.erase(0, 1);
 
   // Fill with zeros at the end of the text
diff --git a/src/app/ui/main_window.cpp b/src/app/ui/main_window.cpp
index 7f6b86aa6..dc97c4d01 100644
--- a/src/app/ui/main_window.cpp
+++ b/src/app/ui/main_window.cpp
@@ -15,6 +15,7 @@
 #include "app/commands/commands.h"
 #include "app/ini_file.h"
 #include "app/modules/editors.h"
+#include "app/notification_delegate.h"
 #include "app/pref/preferences.h"
 #include "app/ui/color_bar.h"
 #include "app/ui/context_bar.h"
@@ -35,6 +36,7 @@
 #include "app/ui/workspace_tabs.h"
 #include "app/ui_context.h"
 #include "base/path.h"
+#include "she/display.h"
 #include "ui/message.h"
 #include "ui/splitter.h"
 #include "ui/system.h"
@@ -44,10 +46,51 @@ namespace app {
 
 using namespace ui;
 
+class ScreenScalePanic : public INotificationDelegate {
+public:
+  std::string notificationText() override {
+    return "Reset Scale!";
+  }
+
+  void notificationClick() override {
+    auto& pref = Preferences::instance();
+
+    const int newScreenScale = 2;
+    const int newUIScale = 1;
+    bool needsRestart = false;
+
+    if (pref.general.screenScale() != newScreenScale)
+      pref.general.screenScale(newScreenScale);
+
+    if (pref.general.uiScale() != newUIScale) {
+      pref.general.uiScale(newUIScale);
+      needsRestart = true;
+    }
+
+    pref.save();
+
+    // If the UI scale is greater than 100%, we would like to avoid
+    // setting the Screen Scale to 200% right now to avoid a worse
+    // effect to the user. E.g. If the UI Scale is 400% and Screen
+    // Scale is 100%, and the user choose to reset the scale, we
+    // cannot change the Screen Scale to 200% (we're going to
+    // increase the problem), so we change the Screen Scale to 100%
+    // just to show the "restart" message.
+    Manager* manager = Manager::getDefault();
+    she::Display* display = manager->getDisplay();
+    display->setScale(ui::guiscale() > newUIScale ? 1: newScreenScale);
+    manager->setDisplay(display);
+
+    if (needsRestart)
+      Alert::show("Aseprite<<Restart the program.||&OK");
+  }
+};
+
 MainWindow::MainWindow()
   : m_mode(NormalMode)
   , m_homeView(nullptr)
   , m_devConsoleView(nullptr)
+  , m_scalePanic(nullptr)
 {
   // Load all menus by first time.
   AppMenus::instance()->reload();
@@ -104,6 +147,8 @@ MainWindow::MainWindow()
 
 MainWindow::~MainWindow()
 {
+  delete m_scalePanic;
+
   if (m_devConsoleView) {
     if (m_devConsoleView->parent())
       m_workspace->removeView(m_devConsoleView);
@@ -251,6 +296,20 @@ void MainWindow::onSaveLayout(SaveLayoutEvent& ev)
   Window::onSaveLayout(ev);
 }
 
+void MainWindow::onResize(ui::ResizeEvent& ev)
+{
+  app::gen::MainWindow::onResize(ev);
+
+  she::Display* display = manager()->getDisplay();
+  if ((display) &&
+      (display->scale()*ui::guiscale() > 2) &&
+      (!m_scalePanic) &&
+      (ui::display_w()/ui::guiscale() < 320 ||
+       ui::display_h()/ui::guiscale() < 260)) {
+    showNotification(m_scalePanic = new ScreenScalePanic);
+  }
+}
+
 // When the active view is changed from methods like
 // Workspace::splitView(), this function is called, and we have to
 // inform to the UIContext that the current view has changed.
diff --git a/src/app/ui/main_window.h b/src/app/ui/main_window.h
index 9d5603ec6..5a7f8e51c 100644
--- a/src/app/ui/main_window.h
+++ b/src/app/ui/main_window.h
@@ -1,5 +1,5 @@
 // Aseprite
-// Copyright (C) 2001-2015  David Capello
+// Copyright (C) 2001-2016  David Capello
 //
 // This program is distributed under the terms of
 // the End-User License Agreement for Aseprite.
@@ -95,6 +95,7 @@ namespace app {
   protected:
     bool onProcessMessage(ui::Message* msg) override;
     void onSaveLayout(ui::SaveLayoutEvent& ev) override;
+    void onResize(ui::ResizeEvent& ev) override;
     void onActiveViewChange();
 
   private:
@@ -115,6 +116,7 @@ namespace app {
     HomeView* m_homeView;
     DevConsoleView* m_devConsoleView;
     Notifications* m_notifications;
+    INotificationDelegate* m_scalePanic;
   };
 
 }
diff --git a/src/app/ui/popup_window_pin.cpp b/src/app/ui/popup_window_pin.cpp
index d484a0d5d..2dd6192a2 100644
--- a/src/app/ui/popup_window_pin.cpp
+++ b/src/app/ui/popup_window_pin.cpp
@@ -1,5 +1,5 @@
 // Aseprite
-// Copyright (C) 2001-2015  David Capello
+// Copyright (C) 2001-2016  David Capello
 //
 // This program is distributed under the terms of
 // the End-User License Agreement for Aseprite.
@@ -40,6 +40,19 @@ PopupWindowPin::PopupWindowPin(const std::string& text, ClickBehavior clickBehav
                        CENTER | MIDDLE));
 }
 
+void PopupWindowPin::showPin(bool state)
+{
+  m_pin.setVisible(state);
+}
+
+void PopupWindowPin::setPinned(bool pinned)
+{
+  m_pin.setSelected(pinned);
+
+  Event ev(this);
+  onPinClick(ev);
+}
+
 void PopupWindowPin::onPinClick(Event& ev)
 {
   if (m_pin.isSelected()) {
@@ -57,33 +70,25 @@ bool PopupWindowPin::onProcessMessage(Message* msg)
 {
   switch (msg->type()) {
 
-    case kOpenMessage:
-      m_pin.setSelected(false);
-      makeFixed();
-      break;
-
-    case kCloseMessage:
-      m_pin.setSelected(false);
+    case kOpenMessage: {
+      if (!isPinned())
+        makeFixed();
       break;
+    }
 
   }
 
   return PopupWindow::onProcessMessage(msg);
 }
 
-void PopupWindowPin::onHitTest(HitTestEvent& ev)
+void PopupWindowPin::onWindowMovement()
 {
-  PopupWindow::onHitTest(ev);
+  PopupWindow::onWindowMovement();
 
-  if ((m_pin.isSelected()) &&
-      (ev.hit() == HitTestClient)) {
-    if (ev.point().x <= bounds().x+2)
-      ev.setHit(HitTestBorderW);
-    else if (ev.point().x >= bounds().x2()-3)
-      ev.setHit(HitTestBorderE);
-    else
-      ev.setHit(HitTestCaption);
-  }
+  // If the window isn't pinned and we move it, we can automatically
+  // pin it.
+  if (!m_pin.isSelected())
+    setPinned(true);
 }
 
 } // namespace app
diff --git a/src/app/ui/popup_window_pin.h b/src/app/ui/popup_window_pin.h
index 0470ed662..5b178d720 100644
--- a/src/app/ui/popup_window_pin.h
+++ b/src/app/ui/popup_window_pin.h
@@ -1,5 +1,5 @@
 // Aseprite
-// Copyright (C) 2001-2015  David Capello
+// Copyright (C) 2001-2016  David Capello
 //
 // This program is distributed under the terms of
 // the End-User License Agreement for Aseprite.
@@ -17,9 +17,13 @@ namespace app {
   public:
     PopupWindowPin(const std::string& text, ClickBehavior clickBehavior);
 
+    void showPin(bool state);
+    bool isPinned() const { return m_pin.isSelected(); }
+    void setPinned(bool pinned);
+
   protected:
     virtual bool onProcessMessage(ui::Message* msg) override;
-    virtual void onHitTest(ui::HitTestEvent& ev) override;
+    virtual void onWindowMovement() override;
 
     // The pin. Your derived class must add this pin in some place of
     // the frame as a children, and you must to remove the pin from the
diff --git a/src/app/ui/skin/skin_theme.cpp b/src/app/ui/skin/skin_theme.cpp
index ca541180a..c126f5ebc 100644
--- a/src/app/ui/skin/skin_theme.cpp
+++ b/src/app/ui/skin/skin_theme.cpp
@@ -1315,21 +1315,22 @@ void SkinTheme::paintSlider(PaintEvent& ev)
     g->fillRect(BGCOLOR, rc);
 
     // Draw thumb
-    g->drawRgbaSurface(thumb, x-thumb->width()/2, rc.y);
+    int thumb_y = rc.y;
+    if (rc.h > thumb->height()*3)
+      rc.shrink(Border(0, thumb->height(), 0, 0));
 
     // Draw borders
-    rc.shrink(Border(
-        3 * guiscale(),
-        thumb->height(),
-        3 * guiscale(),
-        1 * guiscale()));
-
-    drawRect(g, rc, nw.get(), gfx::ColorNone);
+    if (rc.h > 4*guiscale()) {
+      rc.shrink(Border(3, 0, 3, 1) * guiscale());
+      drawRect(g, rc, nw.get(), gfx::ColorNone);
+    }
 
     // Draw background (using the customized ISliderBgPainter implementation)
     rc.shrink(Border(1, 1, 1, 2) * guiscale());
     if (!rc.isEmpty())
       bgPainter->paint(widget, g, rc);
+
+    g->drawRgbaSurface(thumb, x-thumb->width()/2, thumb_y);
   }
   else {
     // Draw borders
diff --git a/src/app/widget_loader.cpp b/src/app/widget_loader.cpp
index 6b042081b..00ef4e1b3 100644
--- a/src/app/widget_loader.cpp
+++ b/src/app/widget_loader.cpp
@@ -420,7 +420,7 @@ Widget* WidgetLoader::convertXmlElementToWidget(const TiXmlElement* elem, Widget
   }
   else if (elem_name == "colorpicker") {
     if (!widget)
-      widget = new ColorButton(Color::fromMask(), app_get_current_pixel_format());
+      widget = new ColorButton(Color::fromMask(), app_get_current_pixel_format(), false);
   }
   else if (elem_name == "dropdownbutton")  {
     if (!widget) {
diff --git a/src/base/hex.h b/src/base/hex.h
new file mode 100644
index 000000000..f5d743694
--- /dev/null
+++ b/src/base/hex.h
@@ -0,0 +1,21 @@
+// Aseprite Base Library
+// Copyright (c) 2016 David Capello
+//
+// This file is released under the terms of the MIT license.
+// Read LICENSE.txt for more information.
+
+#ifndef BASE_HEX_H_INCLUDED
+#define BASE_HEX_H_INCLUDED
+#pragma once
+
+namespace base {
+
+  inline bool is_hex_digit(int digit) {
+    return ((digit >= '0' && digit <= '9') ||
+            (digit >= 'a' && digit <= 'f') ||
+            (digit >= 'A' && digit <= 'F'));
+  }
+
+} // namespace base
+
+#endif
diff --git a/src/doc/CMakeLists.txt b/src/doc/CMakeLists.txt
index 6985030a2..8d3b13b69 100644
--- a/src/doc/CMakeLists.txt
+++ b/src/doc/CMakeLists.txt
@@ -32,6 +32,7 @@ add_library(doc-lib
   documents.cpp
   file/col_file.cpp
   file/gpl_file.cpp
+  file/hex_file.cpp
   file/pal_file.cpp
   frame_tag.cpp
   frame_tag_io.cpp
diff --git a/src/doc/file/hex_file.cpp b/src/doc/file/hex_file.cpp
new file mode 100644
index 000000000..f202ad265
--- /dev/null
+++ b/src/doc/file/hex_file.cpp
@@ -0,0 +1,87 @@
+// Aseprite Document Library
+// Copyright (c) 2016 David Capello
+//
+// This file is released under the terms of the MIT license.
+// Read LICENSE.txt for more information.
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "base/fstream_path.h"
+#include "base/hex.h"
+#include "base/trim_string.h"
+#include "base/unique_ptr.h"
+#include "doc/palette.h"
+
+#include <cctype>
+#include <fstream>
+#include <iomanip>
+#include <sstream>
+#include <string>
+
+namespace doc {
+namespace file {
+
+Palette* load_hex_file(const char *filename)
+{
+  std::ifstream f(FSTREAM_PATH(filename));
+  if (f.bad())
+    return nullptr;
+
+  base::UniquePtr<Palette> pal(new Palette(frame_t(0), 0));
+
+  // Read line by line, each line one color, ignore everything that
+  // doesn't look like a hex color.
+  std::string line;
+  while (std::getline(f, line)) {
+    // Trim line
+    base::trim_string(line, line);
+
+    // Remove comments
+    if (line.empty())
+      continue;
+
+    // Find 6 consecutive hex digits
+    for (int i=0; i<line.size(); ++i) {
+      int j = i;
+      for (; j<i+6; ++j) {
+        if (!base::is_hex_digit(line[j]))
+          break;
+      }
+      if (j-i != 6)
+        continue;
+
+      // Convert text (Base 16) to integer
+      int hex = std::strtol(line.substr(i, 6).c_str(), nullptr, 16);
+      int r = (hex & 0xff0000) >> 16;
+      int g = (hex & 0xff00) >> 8;
+      int b = (hex & 0xff);
+      pal->addEntry(rgba(r, g, b, 255));
+
+      // Done, one color per line
+      break;
+    }
+  }
+
+  return pal.release();
+}
+
+bool save_hex_file(const Palette *pal, const char *filename)
+{
+  std::ofstream f(FSTREAM_PATH(filename));
+  if (f.bad()) return false;
+
+  f << std::hex << std::setfill('0');
+  for (int i=0; i<pal->size(); ++i) {
+    uint32_t col = pal->getEntry(i);
+    f << std::setw(2) << ((int)rgba_getr(col))
+      << std::setw(2) << ((int)rgba_getg(col))
+      << std::setw(2) << ((int)rgba_getb(col)) << "\n";
+  }
+
+  return true;
+}
+
+} // namespace file
+} // namespace doc
diff --git a/src/doc/file/hex_file.h b/src/doc/file/hex_file.h
new file mode 100644
index 000000000..ec0d5ca61
--- /dev/null
+++ b/src/doc/file/hex_file.h
@@ -0,0 +1,23 @@
+// Aseprite Document Library
+// Copyright (c) 2016 David Capello
+//
+// This file is released under the terms of the MIT license.
+// Read LICENSE.txt for more information.
+
+#ifndef DOC_FILE_HEX_FILE_H_INCLUDED
+#define DOC_FILE_HEX_FILE_H_INCLUDED
+#pragma once
+
+namespace doc {
+
+  class Palette;
+
+  namespace file {
+
+    Palette* load_hex_file(const char* filename);
+    bool save_hex_file(const Palette* pal, const char* filename);
+
+  } // namespace file
+} // namespace doc
+
+#endif
diff --git a/src/gfx/LICENSE.txt b/src/gfx/LICENSE.txt
index 220ac0d42..0d2d81fd4 100644
--- a/src/gfx/LICENSE.txt
+++ b/src/gfx/LICENSE.txt
@@ -1,4 +1,4 @@
-Copyright (c) 2001-2014 David Capello
+Copyright (c) 2001-2016 David Capello
 
 Permission is hereby granted, free of charge, to any person obtaining
 a copy of this software and associated documentation files (the
diff --git a/src/gfx/rect_io.h b/src/gfx/rect_io.h
index c455c3b2a..69be02bf7 100644
--- a/src/gfx/rect_io.h
+++ b/src/gfx/rect_io.h
@@ -1,5 +1,5 @@
 // Aseprite Gfx Library
-// Copyright (C) 2001-2014 David Capello
+// Copyright (C) 2001-2016 David Capello
 //
 // This file is released under the terms of the MIT license.
 // Read LICENSE.txt for more information.
@@ -13,8 +13,7 @@
 
 namespace gfx {
 
-  inline std::ostream& operator<<(std::ostream& os, const Rect& rect)
-  {
+  inline std::ostream& operator<<(std::ostream& os, const Rect& rect) {
     return os << "("
               << rect.x << ", "
               << rect.y << ", "
@@ -22,6 +21,22 @@ namespace gfx {
               << rect.h << ")";
   }
 
+  inline std::istream& operator>>(std::istream& in, Rect& rect) {
+    while (in && in.get() != '(')
+      ;
+
+    if (!in)
+      return in;
+
+    char chr;
+    in >> rect.x >> chr
+       >> rect.y >> chr
+       >> rect.w >> chr
+       >> rect.h >> chr;
+
+    return in;
+  }
+
 }
 
 #endif
diff --git a/src/gfx/region_tests.cpp b/src/gfx/region_tests.cpp
index 920b555eb..99d4ea4a4 100644
--- a/src/gfx/region_tests.cpp
+++ b/src/gfx/region_tests.cpp
@@ -1,5 +1,5 @@
 // Aseprite Gfx Library
-// Copyright (C) 2001-2013 David Capello
+// Copyright (C) 2001-2016 David Capello
 //
 // This file is released under the terms of the MIT license.
 // Read LICENSE.txt for more information.
@@ -10,24 +10,13 @@
 
 #include <gtest/gtest.h>
 
-#include "gfx/region.h"
 #include "gfx/point.h"
+#include "gfx/rect_io.h"
+#include "gfx/region.h"
 
 using namespace std;
 using namespace gfx;
 
-namespace gfx {
-
-  ostream& operator<<(ostream& os, const Rect& rect) {
-    return os << "("
-              << rect.x << ", "
-              << rect.y << ", "
-              << rect.w << ", "
-              << rect.h << ")";
-  }
-  
-}
-
 ostream& operator<<(ostream& os, const Region& rgn)
 {
   os << "{";
diff --git a/src/she/osx/view.mm b/src/she/osx/view.mm
index c41110093..2c4e2b9d7 100644
--- a/src/she/osx/view.mm
+++ b/src/she/osx/view.mm
@@ -406,9 +406,19 @@ bool is_key_pressed(KeyScancode scancode)
     ev.setPreciseWheel(true);
   }
   else {
+    // Ignore the acceleration factor, just use the wheel sign.
+    gfx::Point pt(0, 0);
+    if (event.scrollingDeltaX >= 0.1)
+      pt.x = -1;
+    else if (event.scrollingDeltaX <= -0.1)
+      pt.x = 1;
+    if (event.scrollingDeltaY >= 0.1)
+      pt.y = -1;
+    else if (event.scrollingDeltaY <= -0.1)
+      pt.y = 1;
+
     ev.setPointerType(she::PointerType::Mouse);
-    ev.setWheelDelta(gfx::Point(-event.scrollingDeltaX,
-                                -event.scrollingDeltaY));
+    ev.setWheelDelta(pt);
   }
 
   queue_event(ev);
diff --git a/src/she/skia/skia_window_osx.mm b/src/she/skia/skia_window_osx.mm
index cb299f752..d046efb6c 100644
--- a/src/she/skia/skia_window_osx.mm
+++ b/src/she/skia/skia_window_osx.mm
@@ -300,7 +300,8 @@ private:
     {
       NSGraphicsContext* gc = [NSGraphicsContext currentContext];
       CGContextRef cg = (CGContextRef)[gc graphicsPort];
-      CGImageRef img = SkCreateCGImageRef(bitmap);
+      CGColorSpaceRef colorSpace = CGDisplayCopyColorSpace(CGMainDisplayID());
+      CGImageRef img = SkCreateCGImageRefWithColorspace(bitmap, colorSpace);
       if (img) {
         CGRect r = CGRectMake(viewBounds.origin.x+rect.x,
                               viewBounds.origin.y+rect.y,
@@ -312,6 +313,7 @@ private:
         CGContextRestoreGState(cg);
         CGImageRelease(img);
       }
+      CGColorSpaceRelease(colorSpace);
     }
     bitmap.unlockPixels();
   }
diff --git a/src/ui/LICENSE.txt b/src/ui/LICENSE.txt
index 7ed8f201a..0d2d81fd4 100644
--- a/src/ui/LICENSE.txt
+++ b/src/ui/LICENSE.txt
@@ -1,4 +1,4 @@
-Copyright (c) 2001-2015 David Capello
+Copyright (c) 2001-2016 David Capello
 
 Permission is hereby granted, free of charge, to any person obtaining
 a copy of this software and associated documentation files (the
diff --git a/src/ui/README.md b/src/ui/README.md
index 23ac4199f..57148f8b4 100644
--- a/src/ui/README.md
+++ b/src/ui/README.md
@@ -1,4 +1,4 @@
 # Aseprite UI Library
-*Copyright (C) 2001-2014 David Capello*
+*Copyright (C) 2001-2016 David Capello*
 
 > Distributed under [MIT license](LICENSE.txt)
diff --git a/src/ui/box.cpp b/src/ui/box.cpp
index 74bdcf83a..1f865f6b2 100644
--- a/src/ui/box.cpp
+++ b/src/ui/box.cpp
@@ -1,5 +1,5 @@
 // Aseprite UI Library
-// Copyright (C) 2001-2013, 2015  David Capello
+// Copyright (C) 2001-2016  David Capello
 //
 // This file is released under the terms of the MIT license.
 // Read LICENSE.txt for more information.
@@ -79,13 +79,13 @@ void Box::onSizeHint(SizeHintEvent& ev)
 
 void Box::onResize(ResizeEvent& ev)
 {
-#define LAYOUT_CHILDREN(x, w) {                                         \
+#define LAYOUT_CHILDREN(x, y, w, h) {                                   \
     availExtraSize = availSize.w - prefSize.w;                          \
     availSize.w -= childSpacing() * (visibleChildren-1);                \
     if (align() & HOMOGENEOUS)                                          \
       homogeneousSize = availSize.w / visibleChildren;                  \
                                                                         \
-    Rect childPos(childrenBounds());                                    \
+    Rect defChildPos(childrenBounds());                                 \
     int i = 0, j = 0;                                                   \
     for (auto child : children()) {                                     \
       if (child->hasFlags(HIDDEN))                                      \
@@ -111,9 +111,12 @@ void Box::onResize(ResizeEvent& ev)
         }                                                               \
       }                                                                 \
                                                                         \
-      childPos.w = MAX(1, size);                                        \
+      Rect childPos = defChildPos;                                      \
+      childPos.w = size = MID(child->minSize().w, size, child->maxSize().w); \
+      childPos.h = MID(child->minSize().h, childPos.h, child->maxSize().h); \
       child->setBounds(childPos);                                       \
-      childPos.x += size + childSpacing();                              \
+                                                                        \
+      defChildPos.x += size + childSpacing();                           \
       availSize.w -= size;                                              \
       ++i;                                                              \
     }                                                                   \
@@ -141,10 +144,10 @@ void Box::onResize(ResizeEvent& ev)
     prefSize.h -= border().height();
 
     if (align() & HORIZONTAL) {
-      LAYOUT_CHILDREN(x, w);
+      LAYOUT_CHILDREN(x, y, w, h);
     }
     else {
-      LAYOUT_CHILDREN(y, h);
+      LAYOUT_CHILDREN(y, x, h, w);
     }
   }
 }
diff --git a/src/ui/button.cpp b/src/ui/button.cpp
index 58380fe8a..b837fcac6 100644
--- a/src/ui/button.cpp
+++ b/src/ui/button.cpp
@@ -1,5 +1,5 @@
 // Aseprite UI Library
-// Copyright (C) 2001-2013, 2015  David Capello
+// Copyright (C) 2001-2016  David Capello
 //
 // This file is released under the terms of the MIT license.
 // Read LICENSE.txt for more information.
@@ -370,9 +370,11 @@ void RadioButton::deselectRadioGroup()
   }
 }
 
-void RadioButton::onSelect()
+void RadioButton::onSelect(bool selected)
 {
-  ButtonBase::onSelect();
+  ButtonBase::onSelect(selected);
+  if (!selected)
+    return;
 
   if (!m_handleSelect)
     return;
diff --git a/src/ui/button.h b/src/ui/button.h
index ca528cbb8..82f839784 100644
--- a/src/ui/button.h
+++ b/src/ui/button.h
@@ -1,5 +1,5 @@
 // Aseprite UI Library
-// Copyright (C) 2001-2013, 2015  David Capello
+// Copyright (C) 2001-2016  David Capello
 //
 // This file is released under the terms of the MIT license.
 // Read LICENSE.txt for more information.
@@ -98,7 +98,7 @@ namespace ui {
     void deselectRadioGroup();
 
   protected:
-    void onSelect() override;
+    void onSelect(bool selected) override;
 
   private:
     int m_radioGroup;
diff --git a/src/ui/grid.cpp b/src/ui/grid.cpp
index 2e0f8f054..c338a0bcf 100644
--- a/src/ui/grid.cpp
+++ b/src/ui/grid.cpp
@@ -1,5 +1,5 @@
 // Aseprite UI Library
-// Copyright (C) 2001-2013, 2015  David Capello
+// Copyright (C) 2001-2016  David Capello
 //
 // This file is released under the terms of the MIT license.
 // Read LICENSE.txt for more information.
@@ -191,20 +191,17 @@ void Grid::onResize(ResizeEvent& ev)
 
 void Grid::onSizeHint(SizeHintEvent& ev)
 {
-  int w, h;
-
-  w = h = 0;
-
   calculateSize();
 
   // Calculate the total
-  sumStripSize(m_colstrip, w);
-  sumStripSize(m_rowstrip, h);
+  gfx::Size sz(0, 0);
+  sumStripSize(m_colstrip, sz.w);
+  sumStripSize(m_rowstrip, sz.h);
 
-  w += border().width();
-  h += border().height();
+  sz.w += border().width();
+  sz.h += border().height();
 
-  ev.setSizeHint(Size(w, h));
+  ev.setSizeHint(sz);
 }
 
 void Grid::onPaint(PaintEvent& ev)
@@ -374,7 +371,6 @@ void Grid::expandStrip(std::vector<Strip>& colstrip,
                   else
                     size = cell->h; // Transposed
                 }
-
                 (this->*incCol)(i, size);
               }
             }
@@ -423,38 +419,40 @@ void Grid::distributeStripSize(std::vector<Strip>& colstrip,
   }
   total_req += border_size;
 
-  if (wantmore_count > 0) {
-    int extra_total = rect_size - total_req;
-    if (extra_total > 0) {
-      // If a expandable column-strip was empty (size=0) then we have
-      // to reduce the extra_total size because a new child-spacing is
-      // added by this column
-      for (i=0; i<(int)colstrip.size(); ++i) {
-        if ((colstrip[i].size == 0) &&
-            (colstrip[i].expand_count == max_expand_count || same_width)) {
-          extra_total -= this->childSpacing();
-        }
+  int extra_total = (rect_size - total_req);
+
+  // Expand or reduce "expandable" strip
+  if ((wantmore_count > 0) &&
+      ((extra_total > 0 && (max_expand_count > 0 || same_width)) ||
+       (extra_total < 0))) {
+    // If a expandable column-strip was empty (size=0) then we have
+    // to reduce the extra_total size because a new child-spacing is
+    // added by this column
+    for (i=0; i<(int)colstrip.size(); ++i) {
+      if ((colstrip[i].size == 0) &&
+          (colstrip[i].expand_count == max_expand_count || same_width)) {
+        extra_total -= SGN(extra_total)*this->childSpacing();
       }
-
-      int extra_foreach = extra_total / wantmore_count;
-
-      for (i=0; i<(int)colstrip.size(); ++i) {
-        if (colstrip[i].expand_count == max_expand_count || same_width) {
-          ASSERT(wantmore_count > 0);
-
-          colstrip[i].size += extra_foreach;
-          extra_total -= extra_foreach;
-
-          if (--wantmore_count == 0) {
-            colstrip[i].size += extra_total;
-            extra_total = 0;
-          }
-        }
-      }
-
-      ASSERT(wantmore_count == 0);
-      ASSERT(extra_total == 0);
     }
+
+    int extra_foreach = extra_total / wantmore_count;
+
+    for (i=0; i<(int)colstrip.size(); ++i) {
+      if (colstrip[i].expand_count == max_expand_count || same_width) {
+        ASSERT(wantmore_count > 0);
+
+        colstrip[i].size += extra_foreach;
+        extra_total -= extra_foreach;
+
+        if (--wantmore_count == 0) {
+          colstrip[i].size += extra_total;
+          extra_total = 0;
+        }
+      }
+    }
+
+    ASSERT(wantmore_count == 0);
+    ASSERT(extra_total == 0);
   }
 }
 
diff --git a/src/ui/grid_ui_tests.cpp b/src/ui/grid_ui_tests.cpp
index 6efa37d70..dea892059 100644
--- a/src/ui/grid_ui_tests.cpp
+++ b/src/ui/grid_ui_tests.cpp
@@ -1,11 +1,12 @@
-// Aseprite
-// Copyright (C) 2001-2015  David Capello
+// Aseprite UI Library
+// Copyright (C) 2001-2016  David Capello
 //
-// This program is distributed under the terms of
-// the End-User License Agreement for Aseprite.
+// This file is released under the terms of the MIT license.
+// Read LICENSE.txt for more information.
 
 #define TEST_GUI
 #include "tests/test.h"
+#include "gfx/rect_io.h"
 #include "gfx/size.h"
 
 using namespace gfx;
@@ -144,7 +145,7 @@ TEST(Grid, SameWidth2x1Grid)
 //  |                            |   |
 //  +----------------------------+---+
 //
-TEST(Grid, Intrincate3x3Grid)
+TEST(Grid, Intrincate2x2Grid)
 {
   Grid* grid = new Grid(3, false);
   Widget* w1 = new Widget;
@@ -226,3 +227,82 @@ TEST(Grid, FourColumns)
   EXPECT_EQ(gfx::Rect(30, 0, 10, 10), d.bounds());
   EXPECT_EQ(gfx::Rect(0, 10, 40, 10), e.bounds());
 }
+
+TEST(Grid, OneFixedReduceThree)
+{
+  Grid grid(1, false);
+  grid.noBorderNoChildSpacing();
+
+  Widget a;
+  Widget b;
+  Widget c;
+  Widget d;
+  a.setMinSize(gfx::Size(10, 10));
+  b.setMinSize(gfx::Size(10, 10));
+  c.setMinSize(gfx::Size(10, 10));
+  d.setMinSize(gfx::Size(10, 10));
+
+  grid.addChildInCell(&a, 1, 1, HORIZONTAL);
+  grid.addChildInCell(&b, 1, 1, HORIZONTAL | VERTICAL);
+  grid.addChildInCell(&c, 1, 1, HORIZONTAL | VERTICAL);
+  grid.addChildInCell(&d, 1, 1, HORIZONTAL | VERTICAL);
+
+  // Test request size
+  grid.setChildSpacing(0);
+  EXPECT_EQ(gfx::Size(10, 40), grid.sizeHint());
+
+  // Test bigger layout
+  grid.setBounds(gfx::Rect(0, 0, 10, 100));
+  EXPECT_EQ(gfx::Rect(0, 0, 10, 10), a.bounds());
+  EXPECT_EQ(gfx::Rect(0, 10, 10, 30), b.bounds());
+  EXPECT_EQ(gfx::Rect(0, 40, 10, 30), c.bounds());
+  EXPECT_EQ(gfx::Rect(0, 70, 10, 30), d.bounds());
+
+  // Test perfect layout
+  grid.setBounds(gfx::Rect(0, 0, 10, 40));
+  EXPECT_EQ(gfx::Rect(0, 0, 10, 10), a.bounds());
+  EXPECT_EQ(gfx::Rect(0, 10, 10, 10), b.bounds());
+  EXPECT_EQ(gfx::Rect(0, 20, 10, 10), c.bounds());
+  EXPECT_EQ(gfx::Rect(0, 30, 10, 10), d.bounds());
+
+  // Test reduced layout
+  grid.setBounds(gfx::Rect(0, 0, 10, 16));
+  EXPECT_EQ(gfx::Rect(0, 0, 10, 10), a.bounds());
+  EXPECT_EQ(gfx::Rect(0, 10, 10, 2), b.bounds());
+  EXPECT_EQ(gfx::Rect(0, 12, 10, 2), c.bounds());
+  EXPECT_EQ(gfx::Rect(0, 14, 10, 2), d.bounds());
+}
+
+TEST(Grid, ReduceThree)
+{
+  Grid grid(1, false);
+  grid.noBorderNoChildSpacing();
+
+  Widget a;
+  Widget b;
+  Widget c;
+  a.setMinSize(gfx::Size(10, 10));
+  b.setMinSize(gfx::Size(10, 10));
+  c.setMinSize(gfx::Size(10, 10));
+
+  grid.addChildInCell(&a, 1, 1, HORIZONTAL);
+  grid.addChildInCell(&b, 1, 1, HORIZONTAL);
+  grid.addChildInCell(&c, 1, 1, HORIZONTAL);
+
+  // Test request size
+  grid.setChildSpacing(0);
+  EXPECT_EQ(gfx::Size(10, 30), grid.sizeHint());
+
+  // Test bigger layout (as these widgets aren't expandible, they
+  // should have height=10)
+  grid.setBounds(gfx::Rect(0, 0, 10, 90));
+  EXPECT_EQ(gfx::Rect(0, 0, 10, 10), a.bounds());
+  EXPECT_EQ(gfx::Rect(0, 10, 10, 10), b.bounds());
+  EXPECT_EQ(gfx::Rect(0, 20, 10, 10), c.bounds());
+
+  // Test reduced layout
+  grid.setBounds(gfx::Rect(0, 0, 10, 12));
+  EXPECT_EQ(gfx::Rect(0, 0, 10, 4), a.bounds());
+  EXPECT_EQ(gfx::Rect(0, 4, 10, 4), b.bounds());
+  EXPECT_EQ(gfx::Rect(0, 8, 10, 4), c.bounds());
+}
diff --git a/src/ui/popup_window.cpp b/src/ui/popup_window.cpp
index 462b056a8..a49791a86 100644
--- a/src/ui/popup_window.cpp
+++ b/src/ui/popup_window.cpp
@@ -1,5 +1,5 @@
 // Aseprite UI Library
-// Copyright (C) 2001-2013, 2015  David Capello
+// Copyright (C) 2001-2016  David Capello
 //
 // This file is released under the terms of the MIT license.
 // Read LICENSE.txt for more information.
@@ -26,6 +26,7 @@ PopupWindow::PopupWindow(const std::string& text,
   , m_clickBehavior(clickBehavior)
   , m_enterBehavior(enterBehavior)
   , m_filtering(false)
+  , m_fixed(false)
 {
   setSizeable(false);
   setMoveable(false);
@@ -64,12 +65,18 @@ void PopupWindow::makeFloating()
 {
   stopFilteringMessages();
   setMoveable(true);
+  m_fixed = false;
+
+  onMakeFloating();
 }
 
 void PopupWindow::makeFixed()
 {
   startFilteringMessages();
   setMoveable(false);
+  m_fixed = true;
+
+  onMakeFixed();
 }
 
 bool PopupWindow::onProcessMessage(Message* msg)
@@ -91,7 +98,7 @@ bool PopupWindow::onProcessMessage(Message* msg)
       break;
 
     case kMouseLeaveMessage:
-      if (m_hotRegion.isEmpty() && !isMoveable())
+      if (m_hotRegion.isEmpty() && m_fixed)
         closeWindow(nullptr);
       break;
 
@@ -139,7 +146,7 @@ bool PopupWindow::onProcessMessage(Message* msg)
       break;
 
     case kMouseMoveMessage:
-      if (!isMoveable() &&
+      if (m_fixed &&
           !m_hotRegion.isEmpty() &&
           manager()->getCapture() == NULL) {
         gfx::Point mousePos = static_cast<MouseMessage*>(msg)->position();
@@ -202,19 +209,34 @@ void PopupWindow::onInitTheme(InitThemeEvent& ev)
 
 void PopupWindow::onHitTest(HitTestEvent& ev)
 {
+  Window::onHitTest(ev);
+
   Widget* picked = manager()->pick(ev.point());
   if (picked) {
     WidgetType type = picked->type();
-    if ((type == kWindowWidget && picked == this) ||
-        type == kBoxWidget ||
-        type == kLabelWidget ||
-        type == kGridWidget ||
-        type == kSeparatorWidget) {
-      ev.setHit(HitTestCaption);
-      return;
+    if (type == kWindowWidget && picked == this) {
+      if (isSizeable() && (ev.hit() == HitTestBorderNW ||
+                           ev.hit() == HitTestBorderN ||
+                           ev.hit() == HitTestBorderNE ||
+                           ev.hit() == HitTestBorderE ||
+                           ev.hit() == HitTestBorderSE ||
+                           ev.hit() == HitTestBorderS ||
+                           ev.hit() == HitTestBorderSW ||
+                           ev.hit() == HitTestBorderW)) {
+        // Use the hit value from Window::onHitTest()
+        return;
+      }
+      else {
+        ev.setHit(isMoveable() ? HitTestCaption: HitTestClient);
+      }
+    }
+    else if (type == kBoxWidget ||
+             type == kLabelWidget ||
+             type == kGridWidget ||
+             type == kSeparatorWidget) {
+      ev.setHit(isMoveable() ? HitTestCaption: HitTestClient);
     }
   }
-  Window::onHitTest(ev);
 }
 
 void PopupWindow::startFilteringMessages()
@@ -241,4 +263,14 @@ void PopupWindow::stopFilteringMessages()
   }
 }
 
+void PopupWindow::onMakeFloating()
+{
+  // Do nothing
+}
+
+void PopupWindow::onMakeFixed()
+{
+  // Do nothing
+}
+
 } // namespace ui
diff --git a/src/ui/popup_window.h b/src/ui/popup_window.h
index 1b3750774..4def669fd 100644
--- a/src/ui/popup_window.h
+++ b/src/ui/popup_window.h
@@ -1,5 +1,5 @@
 // Aseprite UI Library
-// Copyright (C) 2001-2013, 2015  David Capello
+// Copyright (C) 2001-2016  David Capello
 //
 // This file is released under the terms of the MIT license.
 // Read LICENSE.txt for more information.
@@ -46,6 +46,9 @@ namespace ui {
     void onInitTheme(InitThemeEvent& ev) override;
     void onHitTest(HitTestEvent& ev) override;
 
+    virtual void onMakeFloating();
+    virtual void onMakeFixed();
+
   private:
     void startFilteringMessages();
     void stopFilteringMessages();
@@ -54,6 +57,7 @@ namespace ui {
     EnterBehavior m_enterBehavior;
     gfx::Region m_hotRegion;
     bool m_filtering;
+    bool m_fixed;
   };
 
 } // namespace ui
diff --git a/src/ui/widget.cpp b/src/ui/widget.cpp
index 1b9301ec8..56946271d 100644
--- a/src/ui/widget.cpp
+++ b/src/ui/widget.cpp
@@ -211,7 +211,7 @@ void Widget::setEnabled(bool state)
       disableFlags(DISABLED);
       invalidate();
 
-      onEnable();
+      onEnable(true);
     }
   }
   else {
@@ -221,7 +221,7 @@ void Widget::setEnabled(bool state)
       enableFlags(DISABLED);
       invalidate();
 
-      onDisable();
+      onEnable(false);
     }
   }
 }
@@ -233,7 +233,7 @@ void Widget::setSelected(bool state)
       enableFlags(SELECTED);
       invalidate();
 
-      onSelect();
+      onSelect(true);
     }
   }
   else {
@@ -241,7 +241,7 @@ void Widget::setSelected(bool state)
       disableFlags(SELECTED);
       invalidate();
 
-      onDeselect();
+      onSelect(false);
     }
   }
 }
@@ -1436,22 +1436,12 @@ void Widget::onSetDecorativeWidgetBounds()
   }
 }
 
-void Widget::onEnable()
+void Widget::onEnable(bool enabled)
 {
   // Do nothing
 }
 
-void Widget::onDisable()
-{
-  // Do nothing
-}
-
-void Widget::onSelect()
-{
-  // Do nothing
-}
-
-void Widget::onDeselect()
+void Widget::onSelect(bool selected)
 {
   // Do nothing
 }
diff --git a/src/ui/widget.h b/src/ui/widget.h
index e7bf33374..54bb886c4 100644
--- a/src/ui/widget.h
+++ b/src/ui/widget.h
@@ -368,10 +368,8 @@ namespace ui {
     virtual void onBroadcastMouseMessage(WidgetsList& targets);
     virtual void onInitTheme(InitThemeEvent& ev);
     virtual void onSetDecorativeWidgetBounds();
-    virtual void onEnable();
-    virtual void onDisable();
-    virtual void onSelect();
-    virtual void onDeselect();
+    virtual void onEnable(bool enabled);
+    virtual void onSelect(bool selected);
     virtual void onSetText();
     virtual void onSetBgColor();
 
diff --git a/src/ui/window.cpp b/src/ui/window.cpp
index 09e7b587b..79f4a1f0f 100644
--- a/src/ui/window.cpp
+++ b/src/ui/window.cpp
@@ -1,5 +1,5 @@
 // Aseprite UI Library
-// Copyright (C) 2001-2015  David Capello
+// Copyright (C) 2001-2016  David Capello
 //
 // This file is released under the terms of the MIT license.
 // Read LICENSE.txt for more information.
@@ -182,6 +182,11 @@ void Window::onWindowResize()
   // Do nothing
 }
 
+void Window::onWindowMovement()
+{
+  // Do nothing
+}
+
 void Window::remapWindow()
 {
   if (m_isAutoRemap) {
@@ -579,6 +584,8 @@ void Window::moveWindow(const gfx::Rect& rect, bool use_blit)
   }
 
   manager->invalidateDisplayRegion(invalidManagerRegion);
+
+  onWindowMovement();
 }
 
 } // namespace ui
diff --git a/src/ui/window.h b/src/ui/window.h
index 3f1120544..c64d7ce9e 100644
--- a/src/ui/window.h
+++ b/src/ui/window.h
@@ -1,5 +1,5 @@
 // Aseprite UI Library
-// Copyright (C) 2001-2013, 2015  David Capello
+// Copyright (C) 2001-2016  David Capello
 //
 // This file is released under the terms of the MIT license.
 // Read LICENSE.txt for more information.
@@ -46,6 +46,7 @@ namespace ui {
     bool isDesktop() const { return m_isDesktop; }
     bool isOnTop() const { return m_isOnTop; }
     bool isWantFocus() const { return m_isWantFocus; }
+    bool isSizeable() const { return m_isSizeable; }
     bool isMoveable() const { return m_isMoveable; }
 
     HitTest hitTest(const gfx::Point& point);
@@ -67,6 +68,7 @@ namespace ui {
     virtual void onClose(CloseEvent& ev);
     virtual void onHitTest(HitTestEvent& ev);
     virtual void onWindowResize();
+    virtual void onWindowMovement();
 
   private:
     void windowSetPosition(const gfx::Rect& rect);