# Should the pixels RGB values be premultiplied by their alpha value at loading?
	#
	# All gamnit textures must have premultiplied alpha, it provides a better
	# alpha blending, avoids artifacts and allows for additive blending.
	#
	# When at `true`, the default, pixels RGB values are premultiplied
	# at loading. Set to `false` if pixels RGB values are already
	# premultiplied in the source data.
	#
	# This value must be set before calling `load`.
	var premultiply_alpha = true is writable