Cool feature, I like it.
Any chance you would add extra features ?
1. I'd like to see a selection rect around the currently selected color, like the regular palette has.
2. I found that even when the palette is unlocked, selecting a color and then modifying it from the popout palette does not actually modify the color from the palette itself.
3. "Add to palette" button when selecting a new color not already there (like the original palette)
4. Option to set the width of the swatches manually (their width gets too small)
Also but this might be more invovled, it would be nice to be able to re-order the colors in arbitrary positions that does not change the original palette. -> would be useful to re-order the colors in a index-based image without messing up the colors.