What is sugar by Metaplex?

Could you please elaborate on what exactly "sugar by Metaplex" refers to in the context of cryptocurrency and finance? Is it a new form of digital asset, a platform, or a service offered by Metaplex? What are its main features and how does it differ from other similar offerings in the market? Understanding the specifics of "sugar by Metaplex" would help us assess its potential impact on the industry and how it may benefit users.