photobot.Layer.desaturate()
Syntax
canvas.layers[i].desaturate()
Description
Desaturates layer i, making it grayscale. Instantly removes all color information from the layer, while maintaing its alpha channel.
Example
photobot = ximport("photobot")
canvas = photobot.canvas(100,100)
canvas.layer("robot.jpg")
canvas.layers[1].desaturate()