Version: 2017.3
public Texture2D background ;

説明

GUI 要素で使用される背景

関連資料 scaledBackgrounds.

using UnityEngine;
using System.Collections;

public class ExampleClass : MonoBehaviour { public Texture2D aTexture; void OnGUI() { if (!aTexture) { Debug.LogError("Assign a texture on the editor first"); return; } if (GUI.skin.customStyles.Length > 0) GUI.skin.customStyles[0].active.background = aTexture; } }