A collection of many tweaks and additions I have made to the default textures can be found here.
I haven't been able to find anything similar to the Prior Work Penalty (number of times an item has went through an anvil) function of this resource pack on anywhere else, I have only ever seen it on mods or plugins. To use it, simply put any item on an item frame and hold down your SNEAK key, the number of anvil uses will be visible.
As of 1.21.5, all of the item textures are fully functional in Vanilla. Some block based features such as Connected Textures will still require Optifine or Sodium+Continuity to function.
A full list of features and the changelog can be found as text files inside the resource pack.
Images showing off some of the features can be found in the Gallery page.
I hope you enjoy.
