Apple's esthetic police headed by Jonathan Ive have been hard at work inventing ways to kill off device housing apertures for good. Apple has been thinking of killing off iDevice speaker grills by having sound carry through specialized cover glass. They're switching to the audio connector working with the Lightning port to kill off the standard audio jack aperture. And now Apple wants to add to their collection of aperture killing methods by having light transmissive fillers fill holes when not in use so as to appear as if they're not really there. Do you think that Apple's idea is just a little farfetched? If you do, then think again, because Apple's current wireless keyboard for the iMac already uses this invention. In a way this would make it a patent fulfilled, though Apple's invention talks about taking this idea further to other devices. After checking out my iMac's keyboard indicator light when off and on, I was rather surprised at just how well this invention really works.