Row (background) color based on prefix

[Areku]

Hi

I want to color the background of every thread's row based on its prefix.

Ie. PREFIX A is red, PREFIX B is green, PREFIX C is yellow

Hence, having threads

A thread 1
A thread 2
B thread 3
C thread 4
A thread 5

would result in threads' rows colored as

A red thread 1
A red thread 2
B green thread 3
C yellow thread 4
A red thread 5


instead of the alternate default bluish colors


Ideas?


Thanks!