You can change your Facebook Color Scheme to anything you want. Follow the following procedures:
Step01: Please confirm, you are using the Mozilla Firefox browser. Because, you need an add-on that should be compatible with Firefox. Add-on name: "Greasemonkey". Developed by Anthony Lieuallen, Aaron Boodman and Johan Sundström. To get this add-on, please start your firefox browser, then press Ctrl+Shift+A to open 'Add-ons Manager'. By selecting 'Get Add-ons', write "Greasemonkey" in the search box.
Step01: Please confirm, you are using the Mozilla Firefox browser. Because, you need an add-on that should be compatible with Firefox. Add-on name: "Greasemonkey". Developed by Anthony Lieuallen, Aaron Boodman and Johan Sundström. To get this add-on, please start your firefox browser, then press Ctrl+Shift+A to open 'Add-ons Manager'. By selecting 'Get Add-ons', write "Greasemonkey" in the search box.