Blending and compositing artists

In addition to normal alpha blending, there are now alternative options for blending and compositing artists on top of previously drawn artists. The behavior is controlled by the artist's blend_mode property. See Blending and compositing artists for a gallery and for a table of supporting backends.

Furthermore, there is support for blend groups, also known as transparency groups, which can be isolated, knockout, or both. For example, isolated blend groups allow multiple artists to be rendered together in a separate buffer, which is subsequently blended into the primary buffer. See Blending and compositing groups of artists for more details and for a table of supporting backends.