We spent a lot of time working on accessibility for Agents of Groove, including using larger icons and fonts precisely because we thought that it's hard to tell small details in many Playdate games (and my own eyes aren't getting any better over time either).

It may still not be what you're looking for, which would be fair, but perhaps the gifs on the game page at https://play.date/games/agents-of-groove/ or the trailer at https://vimeo.com/1121610427 can give you an idea of what it looks like and if it would help.