There are actually a few 'background' tags floating around in the... background.

...Ok, that one was terrible. In all seriousness though:

[tag:background] Is used generically for both background tasks, and background images. These will need to be manually split out into the appropriate tags.

As for the appropriate tags, there seems to be a few:

###Merge
These tags basically mean the same thing, they could probably be merged

- background-job (gone) -> [tag:background-process] 

Edited after comments:

###Burn
These tags don't add any useful grouping or filter to the question, and should be removed

- [tag:background-image] 
- desktop-background (gone)
- wallpaper (gone)

Thoughts?