This mode subtracts the content of each channel in the higher layer from the channels in the lower layers. Where the result would be negative, the result is positive. For example, if channel value 6 is subtracted from channel value 4, the result will be channel value 2.
Where the higher layer is partially transparent, the result is mixed with the lower layer composite in a manner proportional to the amount of transparency.
|See also:||Subtract blend mode|
Difference blend mode
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