The attached screenshot says it all, really.
What I expected to happen was...:
The stats screen to appear as it did in the pre-release.
What actually happened was...:
Block and item icons appear incomplete or blank.
Steps to Reproduce:
1. Enter a world.
2. Open the stats screen.
3. Select the 'Blocks' or 'Items' page.
Environment
Java version 1.7.0_55 (64-bit) on Windows 7 (64-bit) with NVIDIA GeForce 8600 GT graphics, Java version 1.7.0_60 (64-bit) on Windows 8 (64-bit) with Intel HD Graphics 4000
Does this happen without a resource pack as well?