Sen2Cor default params

Hi Everyone

I am a new Data Scientist at Ceptu and by that I am trying to learn more about sen2cor and the correct way of using it.

I have looked at the processed elements on Amazon for the L2a data and is now trying to use sen2cor directly on the L1c data myself.

My question is what parameters does ESA use for generating the L2a data placed on Amazon, is it the default parameters in sen2cor or is it something different?