This used to be fairly standard - many years ago. I see this:
But I haven't been able to make any of the solutions work for MATE.
Is there any tweak other than installing an entirely different desktop?
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You can try to set new window-bar button layout on your Ubuntu MATE
gsettings set org.mate.Marco.general button-layout \ 'menu,shade:minimize,maximize,close'
to get window rolled/unrolled (Roll Up / Roll Down) by mouse
but here exists problem - not all themes support this functionality - at least BlackMATE, GreenLaguna support it (try from System->Preferences->Look and Feel->Appearance or
Other layout is supported by them too as
gsettings set org.mate.Marco.general button-layout \ 'menu:shade,minimize,maximize,close'
You can set keyboard shortcut Ctrl+Alt+S to change window state:
gsettings set org.mate.Marco.window-keybindings toggle-shaded '<Ctrl><Alt>s'
Shortcut works even if theme does not show buttons.
Moreover if you want to set shade/unshade on mouse middle-click you do this with:
gsettings set org.mate.Marco.general action-middle-click-titlebar 'toggle_shade'
From System->Preferences->Look and Feel->Windows (
mate-window-properties) on Behaviour tab you can set Titlebar Action on double-click on it (Double-click titlebar to perform this action) to Roll up instead of default Maximize.
I hope that finding and downloading themes is not a problem. Two are in the repository - Numix (
numix-gtk-theme package) and Numix Blue (
I tested this on 16.04 LTS, 17.10 (now EOL), 18.04 LTS and 19.04 with Marco and Compiz window managers.