In this tutorial, we’ll learn more of the basics of Unity’s new UIElements framework by creating a simple custom inspector for a hypothetical Monster component. Prerequisites This is a beginner-level tutorial that assumes you have gone through the previous parts of the Extending the Unity Editor with UIElements series: Part 1, Part 2 and Part 3. The Unity version used throughout this tutorial is 2019.3.12f1, but any version 2019.