WARNING FLASHING IMAGES
I wanted to try out the new extended (32 color) low res palette mode.
Use left and right arrows to cycle image rendering methods.
(Some of these methods take a while to draw, especially with the extended "flicker palette"--it's a slow dither.)
Your mileage may vary with the flicker color modes. I think it's a nifty way to get more colors, but many people find it to be distracting / uncomfortable to look at.
Modes
1) Floyd Steinberg: Standard Palette
2) Floyd Steinberg: Optimized Palette (basically just swapped some greens and blues)
3) Low Res with all 32 colors at once!
4) Low Res with "flicker palette" built up from all 32 colors mixed (be patient)
5) Floyd Steinberg with "flicker palette" with standard colors (be patient)
6) Floyd Steinberg with "flicker palette" with optimized colors (be patient)
Notes
--Actual image data is stored as 4-bit RGB channels, with Red in the sprite sheet, Green in the music blocks, and Blue stored as a string. There is no reason for Pico8 to be able to store 4096 color images. But, if you ever want to, this is one way.
--The low res mode with 32 colors is interesting, but I don't think the extended palette colors complement the standard palette very well--definitely not enough to make up for the loss of resolution. Dithering with 16 colors looks better to me.