Terminus Red GTK 2/3 Theme, based on https://www.gnome-look.org/content/show.php?content=136424
git clone https://github.com/codenoid/terminus-red.git
sudo cp -r terminus-red /usr/share/themes
gsettings set org.gnome.desktop.interface gtk-theme "terminus-red"
- Remove unneeded GTK Selector
- All window border is
#cb0000
- Same like GTK 2 version