At this time there are a number of ways you can decorate or customize your profile, group or page.
1) upload a picture
2) upload a banner for the top
3) Use the page designer tool built in (icon in left hand corner)
To put BACKGROUND on
See your banner ... there is a little paint pot on the top left.
Click the paint pot
You can Upload and position your own picture
(click the buttons with will then show blue for the position you want your pics to be)
OR you can use one of the premade backgrounds
Choose your Link colour
Click the "Save Design" button