You have a vip function on the startup equipment, since this plugin is new, you can ask for the author to help.
About the aura I know what you are talking about, I'm developing one but will take maybe 1 month yet to release it. (inspired by this one
[TF2] Rainbow Glow)
You can try to edit
this one
You have other kinds of "change color" aspects,
Body color
Flashlight