白色：(1, 1, 1)

黑色：(0, 0, 0)

将2个颜色相乘，得到一个更暗的颜色

效果像将2张图片打印在透明薄膜上

反转2个颜色然后相乘，最后再反转

效果像将2张图片投影到屏幕上

A black foreground leads to no change. A foreground with the inverse color of the backdrop leads to a fully lit color.

This blend mode is similar to screen, but the foreground need only be as light as the inverse of the backdrop to create a fully lit color.

最终颜色是反转底部颜色，将值除以顶部颜色并反转该值的结果

A white foreground leads to no change. A foreground with the inverse color of the backdrop leads to a black final image.

This blend mode is similar to multiply, but the foreground need only be as dark as the inverse of the backdrop to make the final image black.

如果顶部颜色较暗，则最终颜色是 multiply 的结果，如果顶部颜色较浅则最终颜色是 screen 的结果

This blend mode is equivalent to overlay but with the layers swapped.

The effect is similar to shining a harsh spotlight on the backdrop.

The final color is similar to hard-light, but softer.

This blend mode behaves similar to hard-light.

The effect is similar to shining a diffused spotlight on the backdrop.