When using the filesystem dock in thumbnail grid mode, file names are very hard to read because of complete lack of separation between elements.

[Jordyfel]

Tested versions

Reproducible in 4.5 dev 5, 4.4.1 stable

System information

Windows

Issue description

The issue is more pronounced at low thumbnail sizes, but it's just as bad with the default size when filenames get a bit longer.

Steps to reproduce

Trivial

Minimal reproduction project (MRP)

N/A