Join GitHub today
GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together.Sign up
They are not "bugged" per se, they are part of the older crafting system that was simplified on live and some older, unnecessary items were retired and as such grandfathered into these things. The fact that we are able to obtain these are drops is probably why we are able to get the rare drops to make chaos black as that is part of that system too.
Would be possible for the devs to make these seeds into pigments then that either give chaos black dye or skull white dye?
Here's a list of some seeds I got...