Colour label backgrounds on file/dir names look fugly

### Problem

Currently using a colour label on a file or folder draws a solid, dark colour around the black text (in light mode). This is not very accessible, since the contrast isn’t too great. It also looks super out of place with the new stylesheet that seems to prefer dark text having light colour outlines (such as suggested action buttons).

### Solution:

Make it draw a lighter, transparent background
OR
Make the name text white under all circumstances of it has a colour label applied to it