A virtual tag with this code should get you close:
$If($IsMatch(<Title>,"\(.*\)$"),$RxSplit(<Title>,"\(.*\)",1)" "{contrast: 65}$RxMatch(<Title>,"\(.*\)"),<Title>)
This shows additional track information in a darker font.
Add a
{font... } markup tag to to also change the size.
It's not perfect, but good enough for me.
You will probably want to tweak it to work with just featured artist names, otherwise it will format anything in parentheses.
Bee excellent to each other...