ZXMLui is a UI construction toolkit for Unity Editor development. It allows developers to build custom UnityEditor interfaces using XML-based layout descriptions, inspired by WPF/XAML.
Add this package via Unity Package Manager using the Git URL:
https://github.com/ZSaltedFish/ZXMLui.git?path=Packages/ZXMLui
Please refer to the sample class ZKnight.ZXMLui.Demo.DemoUI for a basic usage example.