Own
Moderator
There are empty spots in both versions of the UI that could be repurposed for subtly displaying info on the game mode. Mainly for being able to understand what difficulty people making videos of the game are on at a glance, both for Story and Arcade mode.
Easy / C0: Clear.
Normal / C1: Blue gem.
Hard / C2: Green gem.
Expert / C3: Red gem.
Easy / C0: Clear.
Normal / C1: Blue gem.
Hard / C2: Green gem.
Expert / C3: Red gem.