the tooltip in the back i want displayed as the active windows(the window shown in front).
the tooltip is displayed from the 3rd icon on the bottom right
Following the same tutorial, just set GUI.Depth = 0 in the DisplayToolTip() function.
private void DisplayToolTip(){
if(_toolTip != ""){
GUI.Box(new Rect(Input.mousePosition.x, Screen.height - Input.mousePosition.y, 200, 100), _toolTip);
GUI.depth = 0;
}