Different colors for "merged" and "default" branch labels?

Description

When I clean up my merged branches, I find myself doing a a double-take because the "default" label for default branches is the same color and approx size as the "merged" label for merged branches.

Example of current display:

Proposal

It would be reassuring and easier to understand if the "merged" and "default" labels were easier to tell apart at a glance, for example if they were different colors, or perhaps the default branch also has a "protected" label.

Thank you!

Design

Change default coloring to purple-500 aka #7a5edf