rgba
Creates a new Color
instance from the passed RGBA
values.
Return
a new Color
instance
Parameters
red
the red channel value in the 0..1
range
green
the green channel value in the 0..1
range
blue
the blue channel value in the 0..1
range
alpha
the opacity channel value in the 0..1
range
Throws
if any of the passed values is out of the 0..1
range