Svg feBlend

The svg efBlend filter offers to pixelate two images concurrently
according to different modes, which are mathematical operations
on the color numbers. The W3C specs look like this:

Mozilla has code to test a logo on a background. This is the result:

Normal:

Multiply:

Screen:

Darken:

Lighten:

Things look a bit different if one changes the background color.Below, lighten on red:

Multiply on blue: