02-21-2021, 12:37 PM
First of all Gimp is 100% RGB editor.
There is a stand-alone + associated Gimp plugin for macOS
http://cyan.fxarena.net/ and https://github.com/rodlie/cyan/releases/tag/1.2.2
I know this works in linux, might work for you. Best you will get is a final export in a CMYK color-space. (or you can open and convert to RGB a CMYK image) All comes with change in gamut for bright colours.
A better bet is Krita and then work 100% in CMYK, also does conversions between colour-spaces.
Maybe try https://krita.org/en/item/krita-nightly-...for-macos/
There is a stand-alone + associated Gimp plugin for macOS
http://cyan.fxarena.net/ and https://github.com/rodlie/cyan/releases/tag/1.2.2
I know this works in linux, might work for you. Best you will get is a final export in a CMYK color-space. (or you can open and convert to RGB a CMYK image) All comes with change in gamut for bright colours.
A better bet is Krita and then work 100% in CMYK, also does conversions between colour-spaces.
Maybe try https://krita.org/en/item/krita-nightly-...for-macos/