tintColor

The tint color of a picture fill symbol layer. The tint color is applied to the entire image by multiplying each RGB color channel in the image by the corresponding color channel of the tint color. The default tint color is white with 100% opacity, i.e. RGBA(255, 255, 255, 255), which leaves the image with its native colors. A white tint color with opacity less than 100% tints the image white, with the reduced opacity respected.

When getting the tint color from a symbol, the consensus value is reported. If there is no consensus (one or more layers have different colors), a null value is reported for the color. Likewise, setting a value for tint color on a symbol will apply that tint color to all layers the symbol contains.