Rohan Joshi's "Backend Text Formatting with Flutter" is a comprehensive guide to creating and formatting text for backend applications with Flutter, Google's mobile UI framework. Through this course, Joshi provides an in-depth look at the Flutter text API, demonstrating how to use it to create, style, and format text for web-based applications. He covers topics such as text alignment, indentation, line spacing, and font selection, as well as how to integrate text into your application’s design. He also takes a deep dive into the advantages and disadvantages of using Flutter for backend text formatting and shares helpful tips on how to optimize text formatting code for better performance.