NOTE: this is obsolete, as these features are already in the newest official tool.
Here’s a test version of the group color management features, something like the suggestion in here.
3800 com.kmaki.Colormate_Rns280_V1.01.xrnx
It’s supposed to work like so:
-
focus color mate gui,
-
press key combo
cmd+g —> change group sibling tracks color to group parent color
shift+ cmd + g —> change group sibling tracks color to selected track’s color
(substitute cmd with ctrl on windows and linux) -
profit
I think this will allow flexibility enough, but this was kinda hard design task. So I’m open to suggestions for better group color handling. It should however be something simple and yet powerful enough.
And an important note: These shortcuts will by default IGNORE group siblings that are also groups. This I don’t know whether it’s good or bad. I’m not sure how to approach this problem. 
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If this stuff works, I’ll probably upload this when tidied up into the tools page.
—EDIT
Will be fixed…: removed a misplaced debug error notice when trying to apply selected track colors to group siblings on a track that has no parent track.
—EDIT2
Should be implemented: Applying group track color to the group when a group track is selected must also work. For the test version, (if my memory serves me right) it does nothing…