This resource pack fixes the textures of the following:

Smoker Bottom Fix
Cloak Fix
Hoe Fix
Double Slab Fix
Sandstone Wall Top Fix
Consistent Smooth Stone
Nicer Fast Leaves
Blaze's Rods Fix
Soul Soil Soul Campfire
Pixel Consistent Guardian Beam
Pixel Consistent Sonic Boom
Pixel Consistent Beacon Beam
Pixel Consistent Experience Orbs
Pixel Consistent Signs
Pixel Consistent Wither
Pixel Consistent Elder Guardian
Pixel Consistent Ghast
Hanging Sign Logs
Brighter Rib Armor Trim
Consistent Helmets
Cocoa Beans Fix
Cactus Bottom Fix
Consistent Tadpole Bucket
Consistent Buckets
Consistent Blank Decorated Pot
Redstone Wire Fix
Updated Observer Texture
Piston Inner Fix

In other words, the pack imitates Vanilla Tweaks' Fixed Textures feature (fast mode) in texture pack form. The imitation is done by solely adjusting vanilla block models, no assets from other mods are used.

FAQ:

Q: Does this work with my texture pack?
- A: Yes.
Q: Do I need any mods to use this?
- A: No.
Q: Can you also imitate the fancy mode?
- A: Not yet, maybe I'll figure a way out some day.
Q: How does it compare to other similar packs?
- A: This texure pack:
  - uses only models, and textures (looks good with other texture packs and has smaller filesize)
  - requires no mods to use
  - works with resource packs that also attempt to change block models
  - has down-spreading dirt paths
  - gives a minor performance boost
Q: Backports to older versions?
- A: Not planned.