There are 4 different renderings in term of color elevation/relief maps in the 800x480px RNS-E (the latest model).
Unfortunately for any color associated with relief to appear, one needs to zoom out pass 11km as the first coloration shows up 12.5km, it changes for the next 2 zoom out options; 15km & 16km. I personally wish it would display relief/elevation much sooner than 11km. I don't even think it would interfere with other data such as roads, since starting at under 2km, only the major roads are represented.
Below are examples of these different shades taken at short interval in an attempt to capture the same data:
Road trip anyone... ...