That's great and everything, but I do miss the blue title bars from Gnome 2.
Fortunately, there's a very straightforward way to change the title bars, or tweak other settings in Gnome: the appropriately-named Gnome Tweak Tool. If you don't have it already, it's easy enough to install via the usual method, or search for it as gnome-tweak-tool. It will show up in your Applications menu as "Tweak Advanced Settings".
Here's what is included in Gnome Tweak Tool:
- Install and switch gnome-shell themes
- Switch gtk/icon/cursor themes
- Switch window manager themes
- The user-interface and titlebar fonts
- Icons in menus and buttons
- Behavior on laptop lid close
- Shell font size
- File manager desktop icons
- Titlebar click action
- Shell clock to show date
- Font hinting and antialiasing
I was most interested in changing the window manager theme, so I clicked on "Windows". The default window theme is Adwaita, where everything is shades of grey. After a little experimenting, I decided on the "Glossy" theme, which gives me a nice blue title bar:
And that's it! I'm very happy to have blue title bars again, that seems to be all I needed as a visual reminder for which is my "active" window. Completely swapping out the Gnome theme is great, but I guess I only needed minor tweaks to what I already had.