Hi @MacEgel ,
I took a look at your campaign, and I'm not sure I see the exact block you are referring to. You should be able to change the background of any block inside your email campaign, but it sounds like you might actually be using a divider block rather than a spacer block. They often look very similar. You can drag another divider block in from the Build bar on the left hand side of your screen.
I hope that helps, but if not, I would maybe recommend giving our support team a call at 866-289-2101 so that they can look at the campaign and block with you live and 1:1.
