[Linux] Interface text is tiny on 4K display

[blahpers]

Description

Installed this recently on my Arch box and by default the text is small enough to cause significant eye strain. In-game settings do not change the size of the text for the interface itself.

Expected behavior
Text is readable at all resolutions.

Actual behavior
Text appears to be tied to pixels rather than DPI.

[msangel]

Ctrl + mouse Scroll do adjust text size. But it is too small by default indeed.