I recently tried to install the Hope gtk3 theme, to change the looks of the default Gnome 3. It's working properly, except for one thing: the top panel's theme is not changing. So, how exactly do you change it?
1 Answer
Manual step
Step 1.
Backup default theme on /usr/share/gnome-shell/theme
to default-theme
Step 2.
Paste your new gnome shell theme folder into /usr/share/gnome-shell/
(Normally theme creator will rename that folder as gnome-shell)
Rename new gnome-shell folder to theme.
Step 3.
Press Alt+F2+r and hit Enter button.