Stonecutter recipe buttons render translucent pixels as opaque

Relates to the following UI translucency issues: MC-109447 MC-165036 MC-165182 MC-174732 MC-192307 MC-200987 MC-251303 MC-268171 MC-268929 MC-269083 MC-269085 MC-269440 MC-269441 MC-269445 MC-269619 MC-269622 MC-269627 MC-269751 MC-269755 MC-269763 MC-269832 MC-269834 MC-269936 MC-269937 MC-270049 MC-270051 MC-270518 MC-270519 MC-270563 MC-270564 MC-270640 MC-270641 MC-270678 MC-270680 MC-270692

More loosely relates to these issues: MC-144009 MC-145821 MC-164001 MC-165403

The bug

If textures used for stonecutter recipes contain translucent pixels, these incorrectly render as opaque in-game.

How to reproduce

1. Download and apply the attached resource pack
2. Put something in a stonecutter
3. Observe

Expected results

Translucent buttons.

Actual results

Opaque buttons.