Colors are rendered incorrectly
Hi!

I've created a spritesheet in Gimp, using this palette: https://lospec.com/palette-list/pico-8

The spritesheet: https://imgur.com/36iND5H

The problem is the sprites from it are rendered in different colors: https://imgur.com/na9JSC1

Why is that? I've tried adding explicit `setPalette(loadPalettePico8())`, that didn't change anything. Tried `setPalette(loadPaletteFromGPL("pico-8.gpl"))`, and the entire screen is just black.

P.S. Nico is fantastic! Thank you so much for the amazing work you do. I’ve just created my first game from scratch, without any prior experience, in just five hours total. And it’s been pure fun all the way.