Just realized I forgot to comment here, but I have implemented a new super gameboy border that will show up in the next version - it looks a bit better than the placeholder grid I put up earlier.
And yeah, I was planning on cycling the palettes I use for pickups so that they “shine” periodically - I know at the small size they can be hard to see/identify as pickups.
I don’t know if I’ll bother for the demo but it’ll be there in the full game.