How to enlarge the UI fonts?

[ghost]

It's too small on my monitor. I'm unable to read.

[fredvs]

You may change the UI font with menu / Settings / Extra Settings and change the font height like you want.

You may also set it with menu / Languages.
On the right side, choose the size of the font:

[fredvs]

Since commit e432b46, by default, the suggested font height for the screen resolution of the user will be used at loading.
You may disable that option in menu Extra-Settings and choose your preferred font height.

All the forms will be scaled according with the font height selected.