Pixel font renders impossibly small size on tooltips

[unlessgames]

Tested versions

4.3 stable

System information

Linux with X11

Issue description

When using a pixel font like Terminus, and picking the smallest possible size as Main Font in the settings, some GUI elements still try to render in a smaller font size leading to unreadable text.

(make sure to view the image above at a pixel perfect zoom)

Steps to reproduce

• use terminus ttf as Main Font and set size to 12
• check a signal tooltip with args that tries to render at size 10 or something

Minimal reproduction project (MRP)

no project necessary

[unlessgames]

Maybe there could be an option to not allow different sizes anywhere from the main font size, or a separate size setting for "small text" (which you could set to the same size as your main font if needed).