Twitter is the famous micro blogging site. When you visit any twitter account, you’ll see colorful background. I guess you’ll be amazed to see it. But I guarantee you from now on you can also make your twitter background colorful that attracts all.
At first log in your twitter account.
In your account click Edit Your Profile.
Click Design tab.
Here are lots of pre-loaded themes.(Read: Add Symbol With Twitter Status)
Choose any of these or you can upload according to your wish & customize it. You can also select background & Links color.(Read: Share Tweet Easily In Facebook)