How to enlarge the titles of the interface like menus etc.

How can I enlarge the titles of the interface like menus, dialog boxes etc.? They are too small in my 14" computer screen. I have scaled the tool icons.

There is a python plugin referenced here: Gimp tool column (left) - change size ? - #6 by rich2005

That writes a little gtkrc file into your Gimp User profile. Using linux and no python ? The gtkrc file is shown.,