A [Node2D] that manages a light in [VertexLights2DServer]. A [Node2D] that manages a light in [VertexLights2DServer]. The light's attenuation. The light's color. WHether this light is enabled or not. The light's item cull mask. The light's layer range. The light's mode. The light's range. The light's z range. The light's color gets added to the resulting colors. The light's color gets substracted to the resulting colors. The light's color gets blended with the resulting colors.