How to Edit Amnesia Launcher?

[CrazyKilla]

Hello, im CrazyKilla

I am creating a mod, and i wanted to make a extra button in the amnesia launcher, that has my mod's name on it, and i can launch it from the launcher, just like the game itself and "Justine", i managed to change the words "Launch Game" to "Awesome" But cannot find how to add a button or how to change justine or anything... help please, this might be hard to answer.