Fyne is a UI toolkit and application API designed to be easy to use. Its interface design follows the material design principles, providing cross-platform graphics that appear identical on all supported platforms. This chapter explores how to write graphical applications for multiple platforms with Fyne.

We'll cover the following topics:

• The vision and design of the Fyne project
• Building a simple Fyne-based application for multiple platforms
• API design and the widgets provided by Fyne
• How to create a complete application using Fyne

By the end of this chapter, you should have an understanding of Fyne project's ambitions and will have built multiple cross-platform graphical applications using the toolkit.