figure <-
blend: {normal,multiply,screen,overlay,darken,lighten,color_dodge,color_burn,hard_light,soft_light,difference,exclusion,hue,saturation,color,luminosity,add}How the figure, with its contents, is composited onto what is below it. normal
paints it over what is below. The other modes are those of Cairo and CSS mix-blend-mode, e.g., multiply
darkens what is below by the colours of the figure, as overlapping
transparent inks would. A figure that is not normal is
drawn on a temporary surface, as is one with graphical<-opacity
below 1, which is combined with the blend mode.
Defaults: normal
