Can we color the fa icon color in the group headings?

[jill88]

Is your feature request related to a problem? Please describe.
The group fa iconsuse the same color as the heading color. But I'd like to change it.

Describe the solution you'd like
Use the link or link-hover color like the card icon colors can.

Describe alternatives you've considered
I tried the link and link-hover colors but it only works on the cards.

Additional context
Maybe an option to use one of the listed theme colors other than just the one option.