GUIStyle.border
var border: RectOffset;
RectOffset border;
border as RectOffset
Description

The borders of all background images.

This corresponds to the border settings for GUITextures. It only affects the rendering of the background image and has no effect on positioning.
	// Prints the left, right, top and down values of the GUIStyle border

private var bdr : RectOffset;

function OnGUI() { bdr = GUI.skin.button.border; Debug.Log("Left: " + bdr.left + " Right: " + bdr.right); Debug.Log("Top: " + bdr.top + " Bottom: " + bdr.bottom); }
using UnityEngine;
using System.Collections;

public class Example : MonoBehaviour {
    private RectOffset bdr;
    void OnGUI() {
        bdr = GUI.skin.button.border;
        Debug.Log("Left: " + bdr.left + " Right: " + bdr.right);
        Debug.Log("Top: " + bdr.top + " Bottom: " + bdr.bottom);
    }
}
import UnityEngine
import System.Collections

public class Example(MonoBehaviour):

	private bdr as RectOffset

	def OnGUI() as void:
		bdr = GUI.skin.button.border
		Debug.Log(((('Left: ' + bdr.left) + ' Right: ') + bdr.right))
		Debug.Log(((('Top: ' + bdr.top) + ' Bottom: ') + bdr.bottom))