Blend Modes

Blend modes for Elements and Shaders.

From the Skia documentation:

Mode	Description
Source In	replaces destination
Destination In	preserves destination
Source Over	source over destination
Destination Over	destination over source
Source In	source trimmed inside destination
Destination In	destination trimmed by source
Source Out	source trimmed outside destination
Destination Out	destination trimmed outside source
Source ATop	source inside destination blended with destination
Destination ATop	destination inside source blended with source
Xor	each of source and destination trimmed outside the other
Plus	sum of colors
Modulate	product of premultiplied colors; darkens destination
Screen	multiply inverse of pixels, inverting result; brightens destination
Overlay	multiply or screen, depending on destination
Darken	darker of source and destination
Lighten	lighter of source and destination
Color Dodge	brighten destination to reflect source
Color Burn	darken destination to reflect source
Hard Light	multiply or screen, depending on source
Soft Light	lighten or darken, depending on source
Difference	subtract darker from lighter with higher contrast
Exclusion	subtract darker from lighter with lower contrast
Multiply	multiply source with destination, darkening image
Hue	hue of source with saturation and luminosity of destination
Saturation	saturation of source with hue and luminosity of destination
Color	hue and saturation of source with luminosity of destination
Luminosity	luminosity of source with hue and saturation of destination