With the new pastels colors that have come out, it has added I believe triple the original dyes that use to drop which in essence means that obtaining the metallic gold/silver, white and black are now harder to come by.

Since the update I"v obtained the following
10 green
4 white/blue/purple/yellow
2 silver/red


Out of all these dyes the one which I hope to receive is black yet I keep getting pastels and since it's all luck based and with more added that odds of obtaining black seem more and more unlikely.

It would be nice if you would consider a 2:1 trade off of dyes for the ones you want so say I want a black and have all these junk colors I can trade in 2 greens for 1 token and use that 1 token to buy the black I'd like.

If there is a rarity attached to each dye then you could make each dye cost more or less based on the rarity of it but it would be nice to be given the option to exchanged colors of dyes which I never plan to use.