Blend modes (alternatively blending modes[1] or mixing modes[2]) in digital image editing and computer graphics are used to determine how two layers are blended with each other. The default blend mode in most applications is simply to obscure the lower layer by covering it with whatever is present in the top layer (see alpha compositing); because each pixel has numerical values, there also are many other ways to blend two layers.

this post is just a test post to get the site working! more soon~

also this diagram is referred to as the WorldESP