How to fill a background
Here's a screenshot of what I would call an "incomplete" background: after cropping to get the right proportions there are some areas that are transparent. What would be the quickest way to fix that so that the background is all one color - perhaps even not white? I know I could select the central image and move it into a new file that has the background I want, but I'm wondering what other ways there are to accomplish the same end result.



