A Unique Colour For Each Tree and Ocean Type In Maps

Currently when you create a map all trees (green) and oceans (blue) appear with the same colour making it difficult for the player to distinguish the different ocean and tree types in maps. So an easy soloution for the trees would be for the pixels to have the same colour as the leaves of the trees, and for the oceans the pixels to have the same colour as the water (swamps more yellow, warm oceans light blue etc)