Bugs with shadow and textures

Put the summary of the bug you're having here

What I expected to happen was...:
Nothing

What actually happened was...:
In newest snapshots I found some bugs with shadows and textures

Steps to Reproduce:
1. Shadows in Creative Menu.. 2D items has become darker(Icons too.)Also blocks have a very dark left side. 
2. Colored banner's texture on 1 sec become in White Banner
3. (Maybe it's your new thing) But Steve/Alex (in Inventory) turns in blue when it's night

4.Chest is... Ehm.. Just look on my screenshots.