GUISettings.selectionColor 选择颜色

using UnityEngine;
using System.Collections;

public class example : MonoBehaviour {
	public string str = "This is a string with \n two lines of text";
	void OnGUI() {
		GUI.skin.settings.selectionColor = Color.cyan;
		str = GUILayout.TextArea(str);
	}
}

// Sets the selection color to cyan
//设置选择颜色为青色
var str : String = "This is a string with \n two lines of text";

function OnGUI() {
	GUI.skin.settings.selectionColor = Color.cyan;
	str = GUILayout.TextArea(str);
}