How to change stat unitgraph background color/opacity?

Hi. I use stat unitgraph a lot just to see if I haven’t made some mistakes in blueprint which case a game to lag. The problem is that this grap is quite big and the background is a little disturbing me. Is there a way to change background opacity and/or change it’s size. I’ve tried Editor Preferences → Visual Logger → Graphs Background Color

, but it haven’t changed anything.