Is it possible to change the colormap/palette or texture resource set during or between a level?
Hm.... how to say
Say. Episode one emphisizes primary colours, but episode 2 moves into a more volotile region and saturates the oranges over tthe blues.
And switching a texture set, so you don't have to remap the map itself, but just create different sets of textures with the same names and have the game cycle between them based on script.