01-29-2020, 07:45 AM
(01-28-2020, 07:15 PM)Ofnuts Wrote: A quick try shows that the purple corners in the color swashes appear when I switch between an RGB image and a grayscale one. This must be Gimp indicating you that it won't use that color as is.
It is indeed... it also works for indexed images. Create an indexed image, if you set the FG/BG using the color picker on the image, there is no purple corner. If you set the FG/BG using the color chooser, you will usually get one because the color is not in the colormap. That purple color is the out-of-gamut color as set in Edit>Preferences>Color management.
Ok, I get it. Thank you for the full explanation.