How to change theme of Qubes App Menu?

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1

I changed theme in xfce, then installed a plugin for qt and Qubes manager changed color. However, App Menu on panel dnot change theme (it seems to always use adwaita). Can you suggest how to change theme of the App Menu? It’s very beautiful and convenient menu, and I don’t want to use wisker. I couldn’t find a solution on forum or in search engine. Thank you

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Unlike Qube Manager, App Menu is written in PyGTK and not Qt.

If you know how to customize CSS, App Menu CSS files are at:

/usr/lib/python3.13/sites-packages/qubes-menu

The above path is for Qubes OS r4.3 development branch. It is the same for r4.2 but the python version might be different.

If you are a UI/UX developer and want to dive deep, then you should check GTK Inspector. And the App Menu source repository is here.

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Thanks!

qubes-menu-dark.css:
@define-color left-background
@define-color right-background
@define-color outer-background