Use of word "increment" in docs for lerpColor()

Issue description

The docs reads:
"Calculates a color between two colors at a specific increment. "

The word "increment" normally means "an amount to be added",
but in this context amount is a fraction between 0.0 and 1.0.

URL(s) of affected page(s)

https://processing.org/reference/lerpColor_.html

Proposed fix

Choose a better word.