Helco

I guessed that this was the intention, the test however is then relying on circumstantial behavior.

The SDK2 uses a virtual environment provided by virtualenv located in "PebbleSDK/.env", by running "source PebbleSDK/.env/bin/activate" and "deactivate" in the way you see in https://github.com/Helco/PebbleLocalSim/blob/master/build/linux/build/bin/build.local.sh#L51 for Linux, the python resource...

Yes, GCornerMask is not supported yet, but will be implemented in the future

+1