== Current Tab Design ==
The current design makes use of outlines and 3D highlighting effects to give the tabs more depth. However, this has the disadvantage of making theming more difficult (as the highlight is difficult to control well, both in the code and theme). It can also make the design feel more dated to same.
=== Problems ===
The effect is subtle with the default theme, but in darker themes the highlight is very strong.
For example, in my personal theme the highlight looks like this:
If you enable transparency on the tabs (D285) then the highlight becomes particularly strong (and thus far I have been unable to improve it much on the code side):
== Proposed Tab Design ==
I propose we remove the tab 3D highlight to give it simpler and more modern appearance.
=== Benefits ===
- Simpler, more modern aesthetic
- Fewer potential problems with custom themes
- Fits nicely with proposed widget style updates: T38037