The "custom colors" window for group color selection loads theme partially

[wwtan]

JabRef version 5.3--2021-03-01--cfb504c on Windows 10 10.0 amd64

• Mandatory: I have tested the latest development version from http://builds.jabref.org/master/ and the problem persists

Steps to reproduce the behavior:

1. Create new group
2. Under "Color", choose "Custom Color..."
3. And we see the mix-theme window
   

[Siedlerchr]

Thanks for the report. The Dark.css needs to be modified to add css for the ColorPicker dialog.
I used scenic view to display the hierarchy, the style class is controls-pane

[tp-1000]

May I have this one? And is this the preferred way to request an issue?