I believe this screenshoot explain everything.
Leaves was switched with lever and grass with thinglass_top and the color was modified.
It also correct itself when moving, like the light bug of dark areas.
MC-7687
Bug when switching texture pack in game
Resolved
Duplicate
0
Ben Slimane Khaled Skander
(Unassigned)
Unconfirmed
Snapshot 13w03a
Retrieved
Duplicate of MC-7627, please use the search function to see if your bug has already been submitted. Currently over 45% of tickets are being closed as duplicate.