The text color used by GUI elements in this state.

	// Sets the text color to yellow of customStyles[0] when an
	// element is turned on and pressed down
	function OnGUI() {
		if(GUI.skin.customStyles.Length > 0)
			GUI.skin.customStyles[0].onActive.textColor = Color.yellow;
	}

using UnityEngine;
using System.Collections;

public class Example : MonoBehaviour {
    void OnGUI() {
        if (GUI.skin.customStyles.Length > 0)
            GUI.skin.customStyles[0].onActive.textColor = Color.yellow;
        
    }
}

import UnityEngine
import System.Collections

public class Example(MonoBehaviour):

	def OnGUI() as void:
		if GUI.skin.customStyles.Length > 0:
			GUI.skin.customStyles[0].onActive.textColor = Color.yellow