To see the custom skybox and environment effects, users generally need Optifine installed. Popularity and Availability
While originally designed for the Java Edition, community-made ports (porters like qcty) exist for Bedrock/MCPE. Abyss Aqua 16x
The pack incorporates custom armor and tool models that fit the 16x style without being overly distracting. Technical Details To see the custom skybox and environment effects,