Addon to raspberry pi case for LEDs and shutdown button

A box that will fit onto the excellent raspberry pi 2 box (thing 9227400), to house the following items:

1 push button.
5 LEDs.


The box is secured by two of the existing screws.

I made this in an attempt to keep my prototype circuit tidy and secure.
The button initiates a shutdown. The single LED is connected to GPIO15 (RxDO) and allows the status of the raspberry PI to be identified at a glance.
The 4 LEDs are wired to GPIO06,13,19 and 26 and are used for me to test my code.