decide whether to use color stops or color points terminology

[KrabCode]

A) "stops" already exists as a gradient sliderInt() saved in users jsons

B) "ColorPoint" is the new main API class to set gradient defaults

Let's choose one and stick to it

[KrabCode]

if we rename the stops to something like "count" we can still keep it compatible with old saves if we search the json for either "count" or "stops" with "stops" having priority