Javascript is one of the most popular languages in existence. MUD Client takes advantage of this, allowing scripts to be written for aliases and triggers.
A full range of ANSI colors is supported. Everything from foreground colors, background colors, underlines and even blinking text.
MUD Client is built separately for each platform. Scripts can send system notifications and put a badge on the app's Dock icon (macOS) or taskbar button (Windows), and on macOS they can also show values in the menu bar. This allows for advanced actions such as displaying your HP at a glance, or sending a notification when a creature has been killed.