More of a SWELL issue I guess, but the color picker opened by
reaper.GR_SelectColor() opens with all of the parameters at 0, meaning the entire palette is black until I manually increase the lightness/value:
An HSV of 0 0 255 would make more sense, no?
Edit: If I open a color picker from something like SWS Auto-Color, it's able to open with the previously-selected color. Is that possible in a script?
Edit the Second: Apparently it is, just not mentioned in the Lua API docs:
reaper.GR_SelectColor(nil, reaper.ColorToNative(255, 0, 0)) sets the color picker to red.