Distinguish between vanilla MicroPython and Pimoroni flawored MicroPython version

Hello all,

Is there a unique identiifer that could be read for the Pimoroni flawored MicroPython? The sys.version does not tell me if I am using the vanilla version or the Pimoroni version.

Why I ask this is that I would like to automate some steps in my development and check if I am running latest MicroPython version.

Cheers