Colloquy is a free IRC chat client with a red-themed interface for a colorful experience.
The installation process for Red Nine is quick and easy. Just unzip the file and move it to the designated location: ~/Library/Application Support/Colloquy/Styles/. If the location does not exist, simply create it. From there, open Preferences, and select Appearance. Choose Red Nine as the new Style from the Default Style drop-down menu.
To switch back to the default style, use the Style drop-down menu, located in the toolbar within the chat room. In case you only want to use this style in particular rooms, select Style on an as-needed basis from the Style drop-down menu in the toolbar. Overall, Red Nine provides a visually appealing and user-friendly experience for Mac users seeking personalized and streamlined chat communication.