Blend

More information about blend modes can be found at https://libvips.github.io/libvips/API/current/libvips-conversion.html#VipsBlendMode and https://www.cairographics.org/operators/

Values
clear
source
over
in
out
atop
dest
dest-over
dest-in
dest-out
dest-atop
xor
add
saturate
multiply
screen
overlay
darken
lighten
colour-dodge
color-dodge
color-burn
color-light
hard-light
soft-light
difference
exclusion