Link colour in About box is 'invisible' for me

Yes, that was my thinking on the About box too!

I don't know whether there is a way for users to define a 'skin' for Qt5 applications, or whether the themes have to be part of the application and thus can only be created by the MuseScore developers, but it seems that both of us would prefer some kind of 'OS native look' theme to the Light and Dark ones currently available.

What I'm meaning is that Qt5 passes on the task of instantiating and drawing screen objects to the native OS, whilst the Qt5 application (MuseScore) retains event-driven control of handling those objects and reacting to clicks etc. I cheerfully admit I have no idea whether that's even possible in Qt5, nor whether the result would look like a complete mess, but it would mean users like Miwarre and I would then have a MuseScore which looks and feels like the other applications we use on our computers.

I know many computer users who, like myself, have set up very specific colour schemes, fonts, etc. for system components (like window titles, menus, selected items, etc.) to compensate for their individual eyesight issues. It may be dull and boring, folks, but application-specific GUIs which don't inherit the OS GUI setup are often sub-optimal to use, and in the worst cases they can be almost totally unusable. We may be a minority of users, maybe even a very small minority, but it really would help us to have a 'look like the OS settings say you should look' theme as an option, if that's possible.

PS: If there IS some kind of 'skin designer' for MuseScore and/or Qt5, I would be happy to try creating a 'neutral' theme for those of use with vision impairments. If you're reading this and know of such a thing, please reply here!