Steam 10 is in 2012 but not 2010. It's part of the N&W Y6B which I think is available for 2012 only even though it is build 2.9.
Search your cm for any Steam xx asset and substitute the kuid. Probably starting with author #311512, notice the last 3 digits.
The same built-in textureIS in trz10, The config except for kuid is the same.
The asset is called "steam" <kuid:-1:6329>
OOPS.. The texture size is 64x64 were as steam 10 is 128x128