How can I show the hilly terrain with the map styler?

i want to show the hilly terrain with the help of map styler.
Is it possible with the map styler alone?if yes then how?
if not
and I have to use the roaster api then how do i integrate it with the map styler?

We do not provide a terrain layer.

if i want to show hills or mountains with different color in the flat map not with elevation? How do i find their id or how do i apply different properties? because it’s not available in the map styler…

You need to introduce that data thru additional source.

Actually I was wrong.
I’m sorry for misleading.
We just released a new service that allows to show hilly terrain.
You can open this URL in Map Styler:

Just remember to replace ‘yourapikey’ with actual API key.