is
Returns true if ColorType always decodes alpha to 1.0, making the pixel fully opaque. If true, ColorType does not reserve bits to encode alpha.
Return
true if alpha is always set to 1.0
Returns true if ColorType always decodes alpha to 1.0, making the pixel fully opaque. If true, ColorType does not reserve bits to encode alpha.
true if alpha is always set to 1.0