Snout pattern can be seen on the back of the banner, even when both are the same color

The bug

If you print a snout pattern in the same color as the banner, it will be visible on the back of the banner.

 

This happens because the snout texture is a solid color instead of being a "cutout" of the base texture of the banner.

In the image below you can see how the creeper pattern is indistinguishable when overlaid with the base texture as it is a cutout of this same texture, while the piglin pattern (called "snout" in-game) is visible when overlaid with the base because it is a solid color. (I have increased the contrast to make it easier to notice)

How to reproduce MC-249682.mp4

• Use this command to create a banner with the snout pattern:

  /setblock ~ ~ ~ white_banner{patterns:[{"pattern":"piglin","color":"white"}]}
  

  See if the snout appears behind the banner

Fixed texture: MC-249682 snout fix.zip