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Sure. Go to System Settings -> General -> Accent Color

Bildschirmfoto 2020-11-22 um 20.29.35.png


The "colored wheel" on the left lets apps use their own color schemes, the others just default them to one colour. Unfortunately the left side of the panel (Artist icons etc) seems to stay red.
 
thank you very much, i'm on mojave on my MacBook pro which is main device and that's not an option, mac mini is my "tester".
 
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