Collapsing Worlds is sort of an "out there" canon. This canon focuses on the more "unstable" parts of levels, and how many timelines and universes are affected by them.
The general tone of the canon is focused around chaos, change, and surrealism. Thus, the pages are more "weirdcore" than liminal, though the liminal feel is still allowed. Go all out with your strange ideas, weird tales, and format screws.