Custom Talents Background

Custom Talents Background addon is inspired by this WeakAura https://wago.io/VZbilQXgb and addresses Midnight WeakAuras abandoning.

Addon is spec-based so you can set up different backgrounds for different specs. 

The game accepts only .tga files with only 2048x1024 sizes, any else will not be rendered at all. 

1. You need to find proper image that being or easily can be scaled to 2048x1024 pixels
2. Convert your image via any tga converter, e.g. this one. In the optional settings there you can set image to be exact 2048x1024
3. Put image inside your Interface folder(or create dedicated subfolder there for images only). You should have something like World of Warcraft\_retail_\Interface\Image.tga
4. RESTART YOUR GAME CLIENT ENTIRELY. Reload UI does not work in this case and game can't load textures files from interface folder without full client loading. 
5. Call the addon by /ctb or /custombg command
6. You already have prefilled path there starting right from \Interface\ folder, write your file name or relative path to it, like in example above it will be just Image.tga
7. Click Apply and you're ready, you'll get the image preview if it loaded successfuly and your talents(N) background will be changed.

BIG NOTE: Despite I've described above initial description of WeakAura with a very little changes, on practice this addon can work fine with any other image extensions, not only with .tga, so you can use .jpg, .jpeg, .png, etc, and any resolution sizes(Works fine with 1024x1024 .jpg image) but image will be stretched to container size of talents frame and will look ugly, make sure that image you are using have exact 2:1 ratio. If something doesn't work just follow the instruction above as it works 100%. 

P.S. If you already used mentioned WeakAura or it forks – you can use your files with no additional steps, only fill the correct path to the image and it's done.