[feature request] - light effects, add some blend "color" mode

[NelloF]

would be necessary a blend mode where the color of the new light effect is added on top of the others (like normal mode) but the black is "transparent" and has no effect. use case example: I have a colored formation (example all drones are red), and i want a smooth circular blue gradient (mapped as distance from mesh) or an image to move across the formation. but keeping the red base color as "background" for the drones. With the current blend modes (multiply, overlay etc) the red background or the new effect is always altered.

[NelloF]

edit: sorry this post was a mistake, was already possible