simplify color picker
Instead of the fill/stroke toggle, split each swatch diagonally. Top left is stroke, bottom right is fill. One click instead of (so frequently) two, and no more unintentionally filling when you meant to stroke..
Perhaps you might want to vote for this request instead?
It is about a CorelDraw-like approach with a left-click setting the fill and right-click setting the stroke:
Your solution feels clumsy, to be honest, it requires precise clicking, muddies swathes’ colors, creates annoying moiré. But I dig the cause!