aseprite/data/widgets/options.xml

<!-- Aseprite -->
<!-- Copyright (C) 2001-2015 by David Capello -->
<gui>
  <window id="options" text="Preferences">
  <vbox>
    <hbox>
      <view maxsize="true">
        <listbox id="section_listbox">
          <listitem text="General" value="section_general" />
          <listitem text="Editor" value="section_editor" />
          <listitem text="Grid &amp;&amp; Background" value="section_grid" />
          <listitem text="Undo" value="section_undo" />
          <listitem text="Experimental" value="section_experimental" />
        </listbox>
      </view>

      <panel id="panel">
        <vbox id="section_general">
          <separator text="General" horizontal="true" />
          <hbox>
            <label text="Screen Scale:" />
            <combobox id="screen_scale" />
          </hbox>
          <check text="Show timeline automatically" id="autotimeline" tooltip="Show the timeline automatically&#10;when a new frame or layer is added." />
          <check text="Expand menu bar items on mouseover" id="expand_menubar_on_mouseover" tooltip="Check this option to get&#10;this old menus behavior." />
          <check text="Center editor when zoom with keys or zoom tool" id="center_on_zoom" />
          <separator horizontal="true" />
          <link id="locate_file" text="Locate Configuration File" />
          <link id="locate_crash_folder" text="Locate Crash Folder" />
        </vbox>

        <!-- Editor -->
        <vbox id="section_editor">
          <separator text="Editor" horizontal="true" />
          <check text="Zoom with Scroll Wheel" id="wheel_zoom" />
          <check text="Show scroll-bars in sprite editor" id="show_scrollbars" tooltip="Show scroll-bars in all sprite editors." />
          <hbox>
            <label text="Right-click:" />
            <combobox id="right_click_behavior" expansive="true" />
          </hbox>
          <hbox>
            <label text="Cursor Color:" />
            <box id="cursor_color_box" /><!-- custom widget -->
          </hbox>
        </vbox>

        <!-- Grid & background -->
        <vbox id="section_grid">
          <separator text="Grid" horizontal="true" />
          <grid columns="3">
            <label text="Grid Color:" />
            <box id="grid_color_placeholder" /><!-- custom widget -->
	    <hbox />

	    <label text="Grid Opacity:" />
            <slider grid_hspan="1" id="grid_opacity" min="1" max="255" width="128" />
            <check id="grid_auto_opacity" text="Auto" />

            <label text="Pixel Grid Color:" />
            <box id="pixel_grid_color_placeholder" /><!-- custom widget -->
	    <hbox />

	    <label text="Pixel Grid Opacity:" />
            <slider id="pixel_grid_opacity" min="1" max="255" width="128" />
            <check id="pixel_grid_auto_opacity" text="Auto" />
          </grid>

          <separator text="Checked Background" horizontal="true" />
          <hbox>
            <label text="Size:" />
            <combobox id="checked_bg_size" expansive="true" />
          </hbox>
          <check text="Apply Zoom" id="checked_bg_zoom" />
          <hbox>
            <label text="Colors:" />
            <box horizontal="true" id="checked_bg_color1_box" />
            <box horizontal="true" id="checked_bg_color2_box" />
          </hbox>

	  <hbox>
	    <hbox expansive="true" />
            <button id="reset" text="Reset" width="60" />
	  </hbox>
        </vbox>

        <!-- Undo -->
        <vbox id="section_undo">
          <separator text="Undo" horizontal="true" />
          <hbox>
            <label text="Undo Limit:" />
            <entry id="undo_size_limit" maxsize="4" tooltip="Limit of memory to be used&#10;for undo information per sprite.&#10;Specified in megabytes." />
            <label text="MB" />
          </hbox>

          <vbox>
            <check id="undo_goto_modified" text="Go to modified frame/layer" tooltip="When it's enabled each time you undo/redo&#10;the current frame &amp; layer will be modified&#10;to focus the undid/redid change." />
            <check id="undo_allow_nonlinear_history" text="Allow non-linear history." />
          </vbox>
        </vbox>

        <!-- Experimental -->
        <vbox id="section_experimental">
          <separator text="User Interface" horizontal="true" />
          <check id="native_cursor" text="Use native mouse cursor" />
          <check id="flash_layer" text="Flash layer when it is selected" />
        </vbox>

      </panel>
    </hbox>
    <separator horizontal="true" />
    <hbox>
      <boxfiller />
      <hbox homogeneous="true">
        <button text="&amp;OK" closewindow="true" id="button_ok" magnet="true" width="60" />
        <button text="&amp;Cancel" closewindow="true" />
      </hbox>
    </hbox>
  </vbox>
  </window>
</gui>