Beacons Glass

I think it would be pretty useful to add a feature where there is a slot inside the beacon where you can place a colored glass since allot of the time its very inconvenient to have a glass block on top, you would keep the old way of changing the color but it would just change the color without having to place an actual block. This could be taken further by actually changing the color of the glass around the nether star to the color of the glass that was inserted