Blend multiple colors with alpha channels into a single color using a specified blending mode.
BlendRGBList(Clist, mode = "blend", RGB_BackGround = c(1, 1, 1))A numeric vector of RGB values.
A list of colors, where each color is a list containing RGB values and alpha channel.
The blending mode to use.
One of "blend", "average", "screen", or "multiply".
Default is "blend".
The background RGB color to composite with.
Default is c(1, 1, 1) (white).