I am running Ubuntu GNOME 15.10 with GNOME 3.18, and I want to know if I can change the top panel's colour and transparency levels?
2 Answers
To do this you will need to install the GNOME Shell extension Activities Configurator. For installation instructions and for instructions on how to get into the settings panel for any extension which has one go here.
And then as well as many other things you will be able to change the top panel colour and its level of transparency:
If you're using a theme, it probably comes with a top bar color. I had to follow the steps here Why is Shell theme disabled in Gnome Tweak Tool? to enable my theme's default top bar color (which works much nicer as a theme).
