I remember back when Supporters had blue names and I was using the Nimbasa's Shining Beauty skin and I had trouble telling Supporters and regular members apart cos they were almost the same color.
If you're having such difficulty, try changing skins like what everyone else said. I'm using Chromatic cos it makes regular members have plain grey names, so I can differentiate them from Supporters better. That was probably why I ditched Nimbasa's Shining Beauty back then.