There is a slight visual lighting glitch with most transparent blocks.

Put the summary of the bug you're having here

What I expected to happen was that I could see the through the ice/slime block/glass clearly.

I could see these large gray squares when the looking through those blocks.
Describe what happened here

Steps to Reproduce:
1. Shake your perspective at a high rate.
2. Jump at a high rate.
3. stare at the slime block/ice/glass block for about 20 seconds.