Is there an easy way to give (regular) Ubuntu the slick green / black color scheme used in Linux Mint's operating systems, whilst keeping all the "regular" Ubuntu stuff (GNOME, the Dock, etc...)?
Surely there is a Terminal command out there somewhere that could achieve this?
I don't want to change to Linux Mint though. I'm not a fan of the Microsoft-style user interface and I don't trust the security of Linux Mint, so I just want the color scheme System-wide, if possible.
Gnome has a very good tool that will help you create a custom theme of your own. It is much similar to how we edit CSS using " Inspect Element " in your browser. It is called
GTK Inspector
https://wiki.gnome.org/Projects/GTK/Inspector
Once you enable it, you can click on any element whose colour you want to change and then replace it using the CSS window available in the
GTK Inspector
tool.It will take some trial and error to learn. In the end, it is very simple to theme Ubuntu yourselves with a few clicks and some CSS. Good luck.
This is how it works