The idea is to let users easily change the background of the website. Users can choose any image or color from the options window to overwrite the default background (set by the developer) of the website. And since the background image or color set is saved in local storage of the browser, the background settings will be retained till the user clears local storage.
Most websites today implement change background theme using server side languages. For e.g. Yahoo Mail, Gmail, Twitter etc. This is not always an easy solution for front end developers and designers. Moreover it kills the performance of the web page.
This plugin is a client side approach for website background customization.
