It would be nice to have more than 16 colour palette choices for the colours. Lacking any signage, I use the colours to identify buildings by material type and/or function so I remember where I have to go to get what item. It's still alpha, there are lots of resource types not even in production, and 15 of the 16 palettes are used already and that is only for very general building classification. I'd like to see at least double the number of palette slots, if not 30.
Signs/building names would be nice too.