Minor bug with status icon in GUI Default Light Theme

[mm47]

The Editor and Project circle icons get color red when everything is saved, and green when there are unsaved changes. This happens only in Default Light Theme in version 2.5.2 (appimage downloaded from github), the Default Dark Theme and all the other themes work properly (green when saved, red when unsaved).

With version 2.1, the icons work properly with all themes, but version 2.1.1 introduces the bug with all themes. Then in version 2.2 everything works properly again. Things remain okay in version 2.3.1, but the bug reappears in version 2.4.4.

All tests have been done with the appimages. I can't test with the debian packages because my system is based on Ubuntu 20.04 and there are some unresolvable dependencies (not the issue here).