Recommended resolution for custom maps

[Seropyhn]

[*] I wanna see how to make a custom maps but I don't know what resolution I should make the drawing, I'm using kleki.com to draw it and what would be a good color key to make the right biomes?

[PBbunnypower]

From what I know, there isnt a specific colour for different biomes. They are based on the height of the land and decided on probability. As far as heightmap colours go, black is for water and white is for mountains, and anything in between you can use for height variations

[Seropyhn]

Thanks, they should def change it to color mode if flat (what i play on) while if hilly it can be height map, but they should release the color key