For changing the controls to match the Humanity theme, I copied:
/usr/share/themes/Ambiant-MATE
to: ~/.themes/Ambiant-MATE
Then inside these files:
gtk-3.0/gtk-main.css
gtk-3.0/settings.ini
gtk-2.0/gtkrc
Replace #87A752
(Ubuntu MATE’s green) with #F17949
(Ubuntu’s Orange), and re-log in for changes to take effect.
Alternatively, you could make the changes directly to /usr/share/themes/Ambiant-MATE
so they apply for all users, but beware if these changes are reverted later due to updates/upgrades.
Just as reference:
- Ubuntu’s original “brown” theme is in
human-theme
andhuman-icon-theme
. - Ubuntu’s current Ambiance and Radiance theme is in
light-themes
. - Applying the original Ambiance or Radiance theme directly in Ubuntu MATE will cause white panels / black text on the panels.