Invert Y Axis

[JulietAdams]

we're currently using a kind of in between of the canvas coordinate system and cartesian coordinate systems. If we invert the Y axis we will be fully using the cartesian coordinate system. This will be a breaking change and we will need to manually confirm all current examples are working after this change is made

[naftalimurgor]

Hi @JulietAdams
I'd like to take on this issue, what are the useful pointers to get started of.

Thanks
Regards,
Naftali