cinnamon_titlebar_fix

Tweak for Cinnamon Desktop. Tested in Linux Mint 21.1.

A one-line command that makes title bar bigger.

Namely, "minimize", "maximize", "close" buttons will be enlarged to 140%. It makes the title bar more suitable for HiDPI screens.

This makes the interface more harmonious if you enlarge the fonts with the Font Selection utility as well.

Set buttons to 140%

In Terminal run:

python3 <(wget -qO- https://raw.githubusercontent.com/rtmigo/cinnamon_titlebar_fix/master/fix_titlebar.py)

That's all. After that, restart Cinnamon (Ctrl+Alt+Esc).

Set buttons to default 100%

If you want to restore original title bar, just run

rm ~/.config/gtk-3.0/gtk.css

and restart Cinnamon.

What this script does

It overwrites the ~/.config/gtk-3.0/gtk.css. By default, there is no such file. If may exist if you already tried to manually customize Cinnamon.

Old gtk.css

If you had ~/.config/gtk-3.0/gtk.css before running the script, its backup will be saved next to original file in the directory ~/.config/gtk-3.0/.

Why 140%

We're slightly limited in scale because zooming the icons makes them blurry. There may also be issues with alignment.

At the moment, it was 140% that seemed to me the best compromise.

In addition, the interface magnification of 1.4 is ideal for the popular combination of 15.6" screen with 1920x1080 resolution. A 1.4x magnification makes the interface size equal to 101 PPI density.