How Do I Change My Jailbreak Server's Crosshair?

My Jailbreak server comes with a default crosshair that looks horrible. How do I change it?

In some hooks.lua file there should be a function called GM:DrawCrosshair, look there

Where is that file located (file path)?

Try looking in gamemodes/<gamemode>/gamemode

Ok, I’ve found it.
What do I do now?

Go crazy. I’m not going to spoonfeed you how to do this, look up Vgui and read the code. Change it as you wish