Hi, I have similar problems getting rich deep colors, especially black and reddish/purple (without making it look grey). I have found that adding cocoa powder with back liquid gel makes a great, deep black. Added benefit that it tastes chocolate, if you don't mind that. I found this achieves a black with much less liquid gel. Still working on the purple, maybe I'll try the cocoa in that as well!? Good luck!
@Shea Thank you for that hack! Will try it out. I would love the chocolate taste too
The only thing I am wondering is, will the addition of cocoa powder not impact the consistency of Royal Icing? Also, will it delay/ impact Royal icing drying and will it impact how its consistency is when it sets- like will it be more crumbly after it sets? Could you share your experience please?
Also, if you find your hack with Purple or other deep colours, could you maybe let me know or maybe write a post so that everyone will know?