[Bug]: Wrong color for widget icons

[foss-]

⚠️ This issue respects the following points: ⚠️

• This is a bug, not a question or a configuration/webserver/proxy issue.
• This issue is not already reported on Github (I've searched it).
• Nextcloud Server is up to date. See Maintenance and Release Schedule for supported versions.
• Nextcloud Server is running on 64bit capable CPU, PHP and OS.
• I agree to follow Nextcloud's Code of Conduct.

Bug description

Nextcloud 25.0.5 (can't update, this is a hosted and I don't control rollout of updates).
Theme: dark mode

Some icons for widgets use the wrong color. Specifically the active Widget for Upcoming tasks and on the Edit widgets view the Recommended files icon.

Interestingly the Recommended files icon shows fine in the active widget. Vice versa the Upcoming tasks icon shows fine in Edit widgets view.

More icons may be affected, did not test all widgets in active state.

Steps to reproduce

Open all widgets and then look at active widget icons as well as icons in edit widgets view.

Expected behavior

All icons should be white. Some are black in dark mode in both active widget and edit widgets views.