The theme is in the aesthetic of the game. I was going for a classic 8-bit style while making it, where the main character is a pixelated umbrella catching little bits of rain here and there. Sure… it doesn’t follow the strict definition of the term bitwise, but considering how widely open-ended jam themes tend to be I figured this was the twist I’d add in my submission.
Edit: I’ll make my own separate comment to clarify where the game’s source material is :)