过渡的类型，当状态更改时将应用于 targetGraphic。
using UnityEngine;
using System.Collections;
using UnityEngine.UI; // Required when Using UI elements.
public class ExampleClass : MonoBehaviour
{
public Button btnMain;
void SomeFunction()
{
//Sets the main button's transition setting to "Color Tint".
btnMain.transition = Selectable.Transition.ColorTint;
}
}