The texture of breaking has too much contrast. I'm not sure if this is a bug or it's normal, but I think it's weird.
MC-77589
Bad crack texture while breaking stained glass
Resolved
Duplicate
0
Tomáš Misař
(Unassigned)
Unconfirmed
breaking-animation, glass, stained, texture
Minecraft 1.8.1
Retrieved
Caused by MC-9553. You're seeing the sky through the light parts of the crack.