We had built some custom sales pages on our old site/theme while we were working on a site wide design revamp. Once we set the new theme live, we realized those custom sales page didn't work anymore on this new theme.
Is there any way to migrate those custom pages over to the new theme? Or to salvage some of the work so it's not quite as hefty as a process of re-coding the entire thing?
Or is it really just a matter of re-coding the entire page again onto the new theme?