Do you get bored of the OLD FACEBOOK look..?? That blue and white screen. If you want you can change your facebook look to new. Here i have the trick by which you can change your Facebook theme and can switch to new attractive look.
The trick is simple you just need to install a Add On in your browser. Just read this step by step guide to change your Facebook theme.
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Change Facebook Theme 

Step 1: Go to Facebook Themes Chrome Extension from here.
Step 2: Click on the Free button then on ADD to start the Installation process.
Step 3: Now Go To  Tools > Extensions in your chrome.
Step 4: Now in Facebook Theme , click on Option Link.

Step 5: Now click on the Explore Button to explore themes.

Step 6: Chose your theme and click on the Install Button

It’s done. Just open your Facebook and see your New look of Facebook. If you wish you can switch to other theme also by exploring theme as in step 3,4.
If you find any problem in installing these you can ask it in comments.