Hi!
please add more options to setup the image colors.
actually i need the follow things, and i can't do this directly on lazpaint, so i manage with psp4 (paint shop pro 4), HSL (Hue, Saturation, Luminance), so a "Luminance curve to Curves option" i think can be nice.
and/or a Hue/Saturation/Luminance option. Although i guess is enough with Luminance curve, i'm not sure.
a Split/Join RGB/HSL channels option.