Created attachment 144820 [details]
UI examples

SUMMARY

As a user with a lot of tabs opened,
In order to quickly jump from one tab to another
I want to have a visual way to spot tabs in the same "context"

STEPS TO REPRODUCE

I thought about a few ways to achieve this:
- Tab background color:
  1. Open tabs
  2. Right-click on a tab (or use a keyboard shortcut) to assign one of the pre-defined contexts to the tab
  3. Result: the tab background changed
  4. A keyboard shortcut allows me to "jump" to the previous/next tab of the same group
- Tabs groups:
  1. Open tabs
  2. Right-click on a tab (or use a keyboard shortcut) to assign one of the pre-defined contexts to the tab
  3. Result: the tab is somewhat grouped with others of the same context
  4. A keyboard shortcut allows me to "jump" from one group to another

OBSERVED RESULT

General workflow is improved

ADDITIONAL INFORMATION

If the solution of colored backgrounds is implemented, the proposed colors should be the ones from the KDE style colors to match the current user theme ?

I have no Qt skills to do this myself quickly, but I'll be glad to give it a try.