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 in the list of icons when creating an in-game macro.
You can browse my spell icon gallery folder for custom icons to download.
- How to create your own icons
You will need two necessary tools (in addition to a photo manipulation program) to create icons. The first is a fan-made program that creates BLP files by <a href="www.wowinterface.com/forums/me…>mundocani, however only through extraction from existing PNG images. You will also need a template that I will share with you.
- Step by step tutorial (Photoshop):
1. Download below files.
Download (Hosting Site)
2. Resize your artwork to a 56x56 dimension. I recommend using sharpening effects to make the image clear after resizing. Remember to add a slight shadowy border as well.
3. Paste your artwork onto the template and merge the layers, save your icon.
4. Drag and drop the .PNG file onto the BLP2PNG.exe, and the program will create a .blp file in the same dictionary as its located.
- How to overwrite existing icons
The benefit in overwriting an existing icon is that the custom icon will then replace not only the icon on your action bar, but also on any buff icon, casting bar, spell book, etc.
You need to find out what the icon file is actually called in order to overwrite it, simply naming your icon the same as the icon you want to overwrite. While there probably is a way of hacking into your game files and finding the icon name, I have found that Thottbot names their icon image files the same as what they are called in-game.
1. Search for the icon you want to replace using Thottbot's search engine.
2. Right click the icon image and look up its properties, the file name is what you are lookingf or.
3. Rename your icon and put it into your icons folder, job done!