Can I change the bathroom glass shelf glass if it is broken?

Of course, you can, but you need to find a professional to measure the size of your rotten glass, and just change it for you, and you can make art glass there.

You can change the place where the glass is installed, generally there are lines on the inside of the door, as long as the lines are removed, you can change it, and there is a glass from above the door, depending on which one you have.

Can't you install black glass in the bathroom?

What kind of glass are you? How big? You didn't even make it clear. >>>More

If you can break a piece, it is not tempered glass, you can replace it, find someone who makes a sliding door or sells glass to help replace it.