If you are like me, you have a color swatch full of specific colors within Color Picker.
But what if you work on a different computer and need that specific swatch? Or like me, you are now using a new Os - clean install?
Well, it's easy, the swatch leaves under: ~your home folder/Library/Colors
It's called: NSColorPanelSwatches.plist
Just copy it from your old Os User/computer and paste it to your new Os User/computer and you are done! (You might need to quit and reload apps.)
Much faster than recreating it by hand. And actually if you need different ones, you can create as many NSColorPanelSwatches#1, #2, #3 as needed. As far as I can tell, only one can be active at a given time, so some renaming has to happen.
Empty Color Picker
No custom NSColorPanelSwatches.plist
Populated Color Picker
Custom NSColorPanelSwatches.plist present