If you are a World of Warcraft player, it is possible for you to install custom icons for your in-game interface, much like installing an add-on. Any icon must be in the “.BLP” format or they will not work.
To install an icon, simply go to your interface folder and create a new folder called “Icons” besides your “AddOns” folder, the path should look like this:
World of Warcraft/Interface/Icons/
Placing any BLP icon in that folder will add it next time you load the game. Notice that unless the file's name is corresponding to that of an existing icon, it will not overwrite any icons and you can instead find it i