Its a seasonal thing

Does anyone know where or if its possible to edit the file that turns the campaign map from winter to summer. In my current game I have the turn rate at 0.25 which equates to four turns a year, which for me is more realistc as I like it to work on a seasonal basis. The only problem with that is I have two winters a year ~:snowman: ~:santa: Any ideas?

I think this is an engine limitation.

The M2TW enigne is essentially the RTW engine, and rome could handle a max 2 seasons properly

So even tho I have four turns a year I cant alter the graphical changes? I dont expect it to be like autum and spring, but it would look a bit more authentic if three of the four turns were "green".

I don't remember anyone mentioning an ability to set "season colors"