Minecraft wiki entry for Development_versions, associated text: MC-161267 – Block selection box is darker compared to older versions.
MC-161273 – Blocks are rendered incorrectly in inventories if a chest, ender chest, bed, shulker box or another item with special rendering is in the inventory.
MC-161274 – Items are rendered bright in dark areas when holding them in the hand.
MC-161276 – Item entities are rendered bright in dark areas.
MC-161279 – Chunk borders do not render when enabling them with F3+G.
MC-161281 – Minecarts with a block in them render incredibly dark.
MC-161282 – Experience orbs occasionally have a black box around them.
MC-161283 – Item frames are not lit correctly and always appear black.
MC-161285 – Item entity 3D model does not render the item's edges properly.
MC-161298 – Shulker boxes have z-fighting issues.
MC-161300 – Blocks held by endermen are darker than usual.