The status icons are just overlaid on top of the monitor icon.
No need for any specialised icon with a background or anything.
Contributes to issue CURA-4148.
Just leave it to the actual icons to provide colour. It may be a bit harder to modify the colours in a different theme then, but now we can have multi-colour icons (as per the new theme requires).
Contributes to issue CURA-4148.
This theme item is broken by nature since the theme itself allows you to change the colours such that these text elements don't get inversed colours at all. Instead I'm going to use text_emphasis for these which is currently the same. If ever they need to get different colours for these items than the normal colour, the theme item will have to be split up.
Contributes to issue CURA-4148.