Aggro indicator?

[Alluvian]

I am colorblind, and on most common backgrounds (browns or greens or reds) I cannot see the red border that indicates an aggressive mob.

Right now I have to tab through all the mobs with my mouse cursor hovered over the target window to get the text that says a mob is aggressive.

Is there a way to make a symbol, or SOMETHING, maybe and * appear in the target box to indicate an aggressive mob in addition to, or instead of the red border? I tried looking for a place to change this color to some neon purple, but didn't see anywhere to change it.

Maybe if there is a hex value somewhere for this color that someone could point me to?

Best solution would be to change what is over the mob's head, but I don't think that can be done. Letting me take my mouse off the targeting window would be nice though.

Thanks in advance for any help.