How to remove window decorations in Cinnamon / Muffin?

Solution 1:

Although it is true that you cannot disable window title bars, you can make them so small, that they are hardly visible. As I landed here via google, I post my solution though the thread is old as it might help others. You can edit

/usr/share/themes/Mint-X/metacity-1

and set all non-zero value properties in the metacity-theme-1.xml (of course you need sudo, to edit something there. A backup is useful.). Now select under Theme settings -> Other settings -> window borders another theme and reselect Mint-X. Now the height of the title bar is determined by the title itself. Chose under Font settings font size 0 for the window title front and the title bar is almost gone.

Solution 2:

You cannot remove the Window title bar i.e the window decorations from cinnamon. Cinnamon depends on clutter and uses it to draw the window and decorations.

I believe, The cinnamon window manager cinnamonwm get assigned dynamically during runtime.

This is a line from /usr/share/cinnamon/js/ui/main.js

let cinnamonwm = global.window_manager; 

So, I believe you cannot do this yet on Cinnamon. And I'm not going to get the bounty ;