Dota 2 Mod Manager

Dota 2 menu backgrounds

The background behind the main menu, which is the screen you look at more than any other and the one Valve gives you least control over.

The D2PFX catalog has 63 mods in this category. Each changes what you see on your own screen; everyone else sees their own game.

Installing any of these

Open Dota 2 Mod Manager, find the hero, press Install. The app puts the file in a free pak slot in the folder your game mounts, tells you when two mods carry the same file, and puts everything back after a Dota patch. The full guide, or the manual route if you would rather do it yourself.