In the new snapshot of minecraft (13w36b) there is a super secret setting in the options menu. when hitting the button an enderman-ish sounds play. Does it do anything or is it just a sound?
Minecraft Java Edition – Super Secret Settings
minecraft-java-edition
Best Answer
In
13w36b
all it does is play mysterious sounds, however a new menu is expected in future snapshots.In
13w38a
clicking the button cycles between a number of shaders:There are many more besides these three.