Formatting Group Headings

Martina:

Does anyone know how to make group headings stand out more? I have tried all the different fonts and nothing makes a difference. The light grey background is so hard to distinguish. I know I can format the text using format rules which helps a bit. Not sure if lots of format rules add to sync time though.

If this condition is true
Condition to check before formatting
It does not affect synchronization much, from what I experience