CSSEx.RGBA.from_hsla
You're seeing just the function
from_hsla, go back to CSSEx.RGBA module for more information.
Converts an existing %CSSEx.HSLA{} struct into a %CSSEx.RGBA{} struct.
Taken from https://www.niwa.nu/2013/05/math-behind-colorspace-conversions-rgb-hsl