I wanted to add this item to the market.

Adding Tint nbt causes client crash.
Is it wrong?

crash-2020-11-24_02.52.20-client.txt

It looks like you might have to put [0.66, 6.66, 6.66] instead of ["0.66f", "6.66f", "6.66f"].

It looks like you might have to put [0.66, 6.66, 6.66] instead of ["0.66f", "6.66f", "6.66f"].

[0.66, 6.66, 6.66] same client crash T_T

If "1" belongs to "Tint" group, it crashes.

It looks like Minecraft invented its own JSON that supports values like 6.66f which would have to be used here, but obviously with them not being standard JSON they will fail to load when used in a normal JSON context.

I will probably have to add support to supply the NBT as a plain string instead of JSON to cover cases like this.