If you’re taking advantage of a jailbreak that uses the Sileo package manager by default, then you’re already enjoying pleasant aesthetics that look and feel like they belong on the latest versions of iOS and iPadOS.
But let’s say you wanted to change those aesthetics in one way or another; what would you do then? You could petition the Sileo Team to make changes, or you could install a jailbreak tweak to accomplish the same task.