What I expected to happen was...:
I would get a shader applied to my world
What actually happened was...:
My screen went black and my cursor was not working at all until I quit minecraft (using command-Q).
Steps to Reproduce:
1. go into a world
2. go to "super secret settings"
3. click it a few times
Duplicate of MC-32663 - If you have not, please use the search function in the future, to see if your bug has already been submitted. If you could not find the original report, please comment with the keywords you searched for.