About
PixelInfo is a table provided to functions in a colorizer. It has the following fields:
r: the r value of the color (number from 0-255)g: the g value of the color (number from 0-255)b: the b value of the color (number from 0-255)a: the a value of the color (number from 0-255)hex: a string hex representation of the color (example:"#00FF00FF")x: the x index of the pixel in the output imagey: the y index of the pixel in the output image
(x, y) follows standard image indexing: (0, 0) in the top left, (width - 1, height - 1) in the bottom right.