Token Metadata Overview 
Overview 
Token creator can add metadata for their existing fungitable token, and metadata will include name, icon URL, desciption and color.
Here some limit for metadata:
- namemust be more than 2 characters and less than 24 characters, and can only contain alphabet, number,- .or- _.
- iconURL and- desciptioncannot have more than 128 characters.
Usage of the actions for update token metadata
Benefits 
- Allow token creator config their own token metadata then later use this for displaying their token if needed.