Just so all of you know, you do not need to guess which new levels use old wall patterns in order to "complete" this clue. Just figuring out which old levels the wall patterns originate from is sufficient. Do feel free to speculate on the identities of the new levels, though! 
You've already got several of the old levels right. Six, if I counted correctly. Keep looking!
(And just so it's clear, the clue is not screen-resolution-dependent.
)
You've already got several of the old levels right. Six, if I counted correctly. Keep looking!
(And just so it's clear, the clue is not screen-resolution-dependent.
)