The Negate effect lets you invert the colour and/or alpha values in the Colour Art and Line Art of an image. The original value of each channel (RGB or A) is subtracted from the maximum value of that channel (255 for 8-bit channels) to produce the negative image.
|Negate Colour||Inverts the values of the colour channels.|
|Negate Alpha||Inverts the transparency value (alpha channel).|
|Negate Colour Clamp to Alpha||Limits the negated area to the alpha channel.|