I would be excited to have these 2 additions to be added to the Mod, which is already pretty neat. But adding this would help Map Maker like me and other Minecrafter who like details as well:

1. more color options like hex code (ex: #660000) which is only possible on the command block right now to be available on the color formatting as well, would help me really much since for now, I have to retract to the online website to get this color codes. (For the list of the hex colors that is viable is on https://www.zrips.net/cmi/hex-colors/).

2. Attributes, Place On, and Can Break can have a suggestion like searching, which probably gonna be hard since there are gonna be so many attributes and blocks on Minecraft, but doing this can helps users to make custom items easier. Also if you may, put a checkmark on Place On and Can Break for everything since some maps use it as well.

Welp, that's all I'm going to say, for now. Great mod by itself, adding these would be like the cherry on top, if you like cherry that is.

Both these features have been implemented in version 2.0.0

Thanks for your suggestions! I'll keep them in mind and try to implement them in the next version.