Type Property 型プロパティ

screen

A mode that multiplies the inverse of the source image samples with the inverse of the background image samples.

Declaration 宣言 

static var screen: GraphicsContext.BlendMode { get }

Discussion 議論

Drawing in this mode results in colors that are at least as light as either of the two contributing sample colors.

See Also 参照

Lightening

static var lighten: GraphicsContext.BlendMode
A mode that creates composite image samples by choosing the lighter samples from either the source image or the background.
static var colorDodge: GraphicsContext.BlendMode
A mode that brightens the background image samples to reflect the source image samples.
static var plusLighter: GraphicsContext.BlendMode
A mode that adds the components of the source and background images, resulting in a lightened composite.