Hey Patrick,
I just pushed version 0.2.7 and I think you'll appreciate many of the changes.
* Palettes should be much better to work with. They are persistent and have save/load now. You can drag them to reorder and hover to get delete and copy options.
* The tool grouping in the menu has been reworked substantially.
* There's an eyedropper hotkey now. It is bound to the 'I' key, but I'll later be adding keybinding customization so it can then be changed.
* Opacity and brush size sliders appear in the main view now, so there's less need to open the menu repeatedly.
* There's now a Grab tool that moves selected pixels.
* View mode has been disabled.
;)