If ya expected something more than that, I'm sorry because I was busy with upgrading to Windows 8.1 Pro.
But nonetheless here's a T-Shirt mod that changes the Heat logo with Batman Arkham Logo (combines Arkham Asylum, City & Origins logos in each section of the logo)

Installation (EASY):
Copy the "Mod" folder (recommended to change the folder name to avoid conflicts with other mods) inside ModLoader Folder

Installation (HARD):
Use an IMG editor, open "Player.IMG" file inside GTA SA > models
Find "tshirtheatwht.TXD" and replace it with the one from the mod
Rebuild archive and open the game and enjoy it! Hopefully more mods coming after I deal with Windows! :D