Color picker broken in High Sierra about graphsketcher

[itfrombit]

The problem is in OQColor.m in the OmniQuartz framework. The method colorWithPlatformColor fails to match a colorSpaceName and returns blackColor every time. In my case, I was getting NSCustomColorSpace, which wasn't being handled. Instead of returning blackColor every time at the bottom of the function, I just returned a linear RGBA color of what was passed in. That seems like a better default choice.

[NevinBR]

I also observe this issue.

[wtaysom]

Found a workaround by using color picker swatches. It's not entirely reliable: certain colors refuse to be picked. (Must be a function of their internal representation, colorspace, or something.)

[muunver]

Same problem here :(

[baileyp1]

Hello, Did anyone find a solution or fix the bug concerning this issue with the colour picker not working in High Sierra?
Any help appreciated :)

[muunver]

Instead of picking a predefined color, I started using RGB sliders option of the mac color picker to choose customized colors and so far it seems to be working.

[baileyp1]

Thank you – just tried that and it works!

[mishaonmac]

Instead of picking a predefined color, I started using RGB sliders option of the mac color picker to choose customized colors and so far it seems to be working.

'Classic Crayons', 'Web Safe Colors' and 'Developer' palettes of 'Color Palettes' tab of the Color Picker seems to be functional too (on Mojave 10.14.6).