13 minutes ago, Old Crow said:
Green: Forest/Plains
White: Snow
Purple: Burnt Forest
Yellow: Desert
Brown: Wasteland
City/town districts (ex. commercial, industrial), not the biomes. 
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13 minutes ago, Old Crow said:
Green: Forest/Plains
White: Snow
Purple: Burnt Forest
Yellow: Desert
Brown: Wasteland
City districts, not the biomes.