If it bothers you, you can remove the anodization chemically with household products. That gets you to silver, but easily scratched. Then you can anodize it using more household and hot tub chemicals and a current limited power supply, a bench supply is fine. That gets you to silver and hard, but will stain. Soak it in whatever dye you like to color it, or not, then boil it to seal off the pores in the anodization and you have the case of your dreams.

No, the LED and IR are in different locations which means the internal mounts are probably different too.