UI Goes Strangely Bright with Inverted Score in Dark Mode

Issue type

UI bug (incorrect info or interface appearance)

Description with steps to reproduce

Upon opening the app & selecting a score (previously having set the app to dark mode, as well as having the invert score option ticked), the whole app gets much brighter than expected—a pale purplish/reddish hue. This makes everything harder to read (including the settings) & could be considered to look bad. This issue also affects light mode, although I don't use it enough to know anything specific.

The only workaround is to open a new instance of MuseScore & closing that score. This somehow reverts the 1st instance to normal. Repeat for subsequent open windows.

Normal hex values for
Main UI: #2D2D30
Score Background: #000000

Observed hex values for
Main UI: #807F89
Score Background: #1D191A

Text color is normal #FFFFFF, Home/Publish pages are normal, & Preferences & other windows are also normal (I have not checked everything, though).

Supporting files, videos and screenshots

In which versions of MuseScore Studio is this issue present?

4.6.5

Regression

I was unable to check

Operating system

OS: Windows 11 Version 24H2 or later, Arch.: x86_64

Additional context

No response

Checklist

• This report follows the guidelines for reporting bugs and issues
• I have verified that this issue has not been logged before, by searching the issue tracker for similar issues
• I have attached all requested files and information to this report
• I have attempted to identify the root problem as concisely as possible, and have used minimal reproducible examples where possible

No source files, tests, or entry points are named. Reproduce on Windows 11 with dark mode and invert score enabled, then trace the UI path used when opening a score; done means the main UI and score background retain their normal colors without affecting settings or other windows.