I strongly feel that governments should intervene and mandate a limited subset of plastics - including colouration - that can be used for food and beverage packaging, etc.

My bottle of sparkling water doesn't really need a green top. The bottle itself doesn't really need to be a light colour tint.

Put branding on paper labels, or better yet - go monochrome and laser-etch/mark everything. Have QR codes on bottles that can have fancy interactive digital marketing/advertising/information.