Help with passive icons

[Arkaine0rmus]

Hello everyone, I need some assistance with creating passive icons for vanilla units, despite having years of WE experience I've never tried to make my own icons. what would be the easiest way to do this? I've looked up tutorials and everything but it seems a little confusing to me, maybe I'm just dumb lol. I need icons for Satyr, Salamander (purple), Overlord, Nether Drake, Furbolg Shaman, and Felhound (red). Any kind of assistance or a push in the right direction would be greatly appreciated, thank you!

 

[A]mun]

You could simply use this tool:
Button Manager v1.8.2