With glass as it is now, mobs cannot detect you through it. Which is ridiculous. Glass is transparent, right? So I suggest that mobs can detect you through glass, and to have that not happen, you combine glass and an ink sac to get tinted glass, which is a tad darker than regular glass. You can see through tinted glass, but mobs cannot.
Now our cathedrals will look even cooler :biggrin.gif:
Also mobs detect you thru windows already i think
Click the picture!
-Derek Shunia