Board Thread:Support Requests - Designing Your Wikia/@comment-25616959-20150817180143

Hi guys, I am trying to add background image to a Wikia, I read it by default the image would be splitted into half and optimized for better view in different screen sizes, but the one I added just won't.. I can't figured out why & the image I'm using is only 1920px in width.. There is no split option in the Theme Designer either but it just won't split..

Can someone please help / advise? Thanks..! 