A Little Help for Linsky.

One of DS's returning readers, a Mr. Max Linsky, has enquired as to how we posted the picture of cherrio's as a background. It seems young Max is starting a blog of his own and wants to use some picture/logo he has as a background. I have no clue how we added Cherrio's (Gravity Boy, that was you). Could someone in the know please post a solution to this problem in the comments. Thanks!