I have an idea for new palette for Tic-80.
But manually grabbing a HEX data from color and copy to Tic-80, is not so fast way.
Is there a fast way to move palette from image to Tic-80?
Unfortunately, importing sprites doesn't adjust the palette accordingly so that's out.
I think you'd need to poke the required RGB values into TICs ram. The only way I can think of getting those values is to write an external program that will allow you to load an image, read RGB values then write them to a text file (there are dozens of free languages/libraries that can do this - for example LOVE2D if you want to stick to Lua ). You could then paste the values into your Lua file and poke them into RAM.
Maybe there's a simpler way but I can't think of one!