Not possible :/
You could add your own html in "misc options" and then style that with css, using the css field in "misc options".
Ok, well you could add your own html, jquery and css all in "misc options". You should set your frontpage to be a page. Then use the js event that I describe here:
http://laythemeforum.com:4567/topic/76/script-loading-at-each-page/3
With this js you can find out if you're on your frontpage or any other page. Just check the body's data-id and data-type everytime this event is fired. Good luck!