Pink and Black habitat boosters

I'd like to suggest a new goal for when you get 10 Epic pink or black dragons. I'd like to see a building you can buy after that point to boost the coin-collecting abilities for those habitats, like we have for red (Eternal Flame), blue (Pantheon Pool), etc. It would take up space on the islands so I do think the main concern of most players (more space and habitats) is the most important improvement to focus on, but in my opinion, pink and black dragons are my favorite so I'd love to have cool buildings for them, too.

Pink and Black habitat boosters