Horizon changes color when standing under blocks

There is an issue with the behavior of the horizon line.

• What I expected to happen:
  When standing under a block, the horizon line stays the same color as it is when standing under nothing.

• What actually happens:
  When a player doesn't stand under anything, the horizon line is a certain color. As soon as the player goes under a block, it turns slightly gray.

• Why this issue needs to be fixed:
  1. This used to be a bug (MC-31681) that has since been fixed in Java Edition - now the horizon does not change color in Java edition only when the player goes deep underground; the darkening scales with the depth.
  2. To improve visual quality of the game.

Steps to reproduce:

1. Head under any block and look as the horizon changes color.