Adhesive felt on the Obsession

The interior of my Obsession's mirror box is not entirely black.  I am unsure whether it has always been this way or whether the black paint has faded over time.  I still had a lot of black adhesive felt lying around from a previous project.  I applied this adhesive felt to the mirror box of the Obsession telescope, making it considerably darker than before.  This will undoubtedly improve the contrast of the faint objects I intend to observe. 

Part of the mirror box with adhesive felt, a part is still with the original paint.

Adhesive felt installed in the mirror box.

The original paint in the mirror box.