Getting Specified Color from Config.yml

I am having some problems with this.I am trying to create a portion of my plugin that lets you set the color of someone who is OP, Yet I don't know how I would change there name, But I can get the Config.yml part, Any Help?

 

@The_FrosTy_Clan color codes mabe? on async player chat event

 

@mine-care I know that, But how do i set there name, Like sending a message to players is like player.sendMessage("Hi"); , How would i change there name???

 

This will make their chat stuff different, the documentation is your tool
Note this is provided as example, different features need different events

 

Please use proper grammar or else I really don't know what you are talking about.

 

@mine-care Name not message. On join check if they are op and have a custom display name if not then do #setDisplayName

 

@bwfcwalshy oh i didnt understand that from the op's post :/