Dark theme stopped working

[G-R-A-F-F]

Hello, I am on NC v23.0.10, dark theme has stopped working for draw.io v1.0.3. I have it set in the settings:

But the actual UI looks like this:

Please advise how I can attempt to fix it. Upgrading to v24 is not an option, for now, waiting for another app to be compatible. Thank you

[hoerup]

https://github.com/pawelrojek/nextcloud-drawio/issues/184