Sorry if this seems like a no brainer question, but I'm at a loss here. I'm trying to customize the default theme, but I can't figure out where to make the changes. For instance, how do I insert an image at the top of the page, which I guess would be a header image?
I looked through the online documentation but I can't seem to find anything geared towards idiots. I'm not completely unsavvy since I managed to do it in Greymatter. Any help would be appreciated.