Make enemies more readable

[ryaaahs]

This is less of an issue and more so a starting point for myself.

When I was showing SB to my friend, he said it was really unreadable and didn't know what were enemies/back pieces. Within the current plugins that sbpe has, is there an option for highlighting enemy entities / giving them a background colour to make them pop?

If not, can someone point me in the right direction to add something like that?