Some legs of cats use wrong bottom texture colors for feet

Some cat feet bottom textures do not have the right color, this is most noticeable with the red cat, as all feet have white bottom pixels of sides faces, but yellow bottom faces

How to reproduce:

1. /summon minecraft:cat ~ ~ ~ {CatType:X,NoAI:1b}

   with X being 0, 2, 3, 7, or 10.

2. Observe the different colors between the bottom of the feet for side textures, and bottom face.

Notes:

• While the all_black cat indeed has a dark bottom of the feet, it is lighter than the lowest pixels on the sides, making the color off still.
• british_shorthair, calico and jellie are affected, but due to in-game shading making the bottom of elements darker, this cannot really be seen in-game.

Relates to MC-237556 (top texture of tuxedo cat legs wrong color).