Type Property 型プロパティ

difference

A mode that subtracts the brighter of the source image sample color or the background image sample color from the other.

Declaration 宣言 

static var difference: GraphicsContext.BlendMode { get }

Discussion 議論

Source image sample values that are black produce no change; white inverts the background color values.

See Also 参照

Inverting

static var exclusion: GraphicsContext.BlendMode
A mode that produces an effect similar to that produced by the difference blend mode, but with lower contrast.