Coloured coins they are tokens generated on China blockchain they are known for token issuance of alternate coins assets and stablecoins.One of the most common implements are Omni protocol on Bitcoin and  Erc -20 on Ethurium.Chia believes that both omni and Erc have problem is in their basic afuncuality and China approach to this problem are Coloured coins which should be easy to use with a light weight on our phones without requiring a  full node. Chia is trying to bring a new feature to their blockchain with they covered coin which is called an offer

Anyone that sees or finds or sees an offer can make a transaction which finishes the other side that paired transaction will be valid and introduced to the to blockchain.Colured coins offers allow a stable coin issuer to ship an app that would let and end user use that stable coin pay transaction fees in their token.It also has inner smart transaction support which mean we will be able to create a stable coin wallett that can can only spend 100 coins every 24 hour or only send coins to designeid payers.Chia claims that covered token will be one of the most disturbed and secure validation network and in in the future will add more polish to Coulred token implements

We will just have to wait and see how Coulered Token will take full advantage of the Chia blockchain which is the only one who uses power of space (is a means of showing that one has legitimate interest in a service such a sending an email by allocating non trival amount of memory to solve a challenge presented by service by a the the service provider) which is one of the most less consuming energy powering system which it could easily allow the Coulered Coins to be one of the most disturbed ,because how much of a big problem energy consumation was to the  future o cryptocurrencies but for now we will just have to wait and see at least until Chia launches the Mainnet(is the point when China will be able for production use involving real money)