using Paps.UnityToolbarExtenderUIToolkit; using UnityEngine; using UnityEngine.UIElements; [MainToolbarElement(id: "SampleButton", alignment: ToolbarAlign.Left, order: 0)] public class SampleButton : Button { public void InitializeElement() { text = "Sample Button"; tooltip = "This is an example of a toolbar button"; clicked += () => Debug.Log("A debug log from sample button"); } }