basically, you just have to edit the css in the showWebring.js file. its awkwardly formatted, but you can edit it like you would any other stylesheet
im pretty sure you can just make a css file and refer to the ids of the divs (i.e. #templateWebring to change box's bg) and theyll appear just fine in the html; thats what i did. u just have to either inspect for id names or try and figure it out from looking at the code (hope this makes sense lol)
i like your layout as well :)