SimplerChat
Functionality
This plugin randomly selects a color from a list of all the colors that are readable in chat.
Commands
Players may change their own name color with the command /changecolor. To avoid spamming while trying to get the best color, the command
accepts a single argument, the chat color of the form dark_aqua, aqua, blue, etc.
Chat Formatting
Changes chat formatting to "world displayname: message".
This plugin also has multiverse integration and will color the world name and use the multiverse alias as defined in multiverse config, otherwise just making the world name go in front of the message.
Notes
This plugin does modify the display name so it would be incompatible with nicknames and essentials chat prefixes. I can change this functionality and add nicknames and if enough people want it simply toggle the chat portion off and keep the name colors however, I do not recommend this plugin be used with essentials chat enabled.