Blend two colors with alpha channels using one of several blending modes: blend, average, screen, or multiply.
Blend2Color(C1, C2, mode = "blend")A list containing the blended RGB values and alpha channel.
A list containing the first color RGB values and alpha channel.
A list containing the second color RGB values and alpha channel.
The blending mode to use.
One of "blend", "average", "screen", or "multiply".
Default is "blend".