Player's inventory shows black colour background for player but shows gray color background for rideble entity inventory.

Steps to reproduce: 

1. Launch game
2. Creat world or open existing world 
3. Open player's inventory then click on Armor button
4. Now see any other rideble entity inventory

Observations:

You will see that player's inventory shows Black colour background for player model but in rideble entities grey coloured background can be seen.

Expected results:

Player and rideable entities have same colour for background of model.