aseprite/data/widgets/palette_from_sprite.xml

<!-- ASEPRITE -->
<!-- Copyright (C) 2015 by David Capello -->
<gui>
<window text="Palette from Sprite" id="palette_from_sprite">
  <grid columns="3">
    <radio id="new_palette" text="Create new palette with" group="1" />
    <entry expansive="true" maxsize="4" id="ncolors" magnet="true" />
    <label text="colors or less" />
    <radio id="current_palette" text="Replace current palette" group="1" cell_hspan="3" />
    <radio id="current_range" text="Replace current range" group="1" cell_hspan="3" />

    <check id="alpha_channel" text="Create entries with alpha component" cell_hspan="3" />

    <separator horizontal="true" cell_hspan="3" />

    <box horizontal="true" homogeneous="true" cell_hspan="3" cell_align="right">
      <button text="&amp;OK" closewindow="true" id="ok" magnet="true" minwidth="60" />
      <button text="&amp;Cancel" closewindow="true" />
    </box>
  </grid>
</window>
</gui>