This new property controls when a humanoids health bar should be displayed.
Enum.HumanoidHealthDisplayType has three values.
Enum.HumanoidHealthDisplayType.DisplayWhenDamaged (Default). A humanoids health bar will only display when the humanoids health is not equal to their max health.
Enum.HumanoidHealthDisplayType.AlwaysOn. The humanoids health bar will always display.
Enum.HumanoidHealthDisplayType.AlwaysOff. The humanoids health bar will not display. This is the equivalent of setting the HealthDisplayDistance to 0.
Note: Healthbars will no longer be always displayed by default, only when a humanoid is damaged. If your game relies on health bars being shown all the time, you should add a StarterHumanoid and set the HealthDisplayType to AlwaysOn.