Name tags and text displays render brighter in dark areas when behind blocks or entities

The Bug:

Name tags and text displays render brighter in dark areas when behind blocks or entities.

Steps to Reproduce:

1. Get two players and label them "Player A" and "Player B".
2. Get "Player A" to stand stand in a dark cave and have "Player B" look at their name tag.
3. Get "Player A" to go behind some blocks while still in the dark cave, and have "Player B" once again look at their name tag.

Observed Behavior:

Name tags and text displays render brighter in dark areas when behind blocks or entities.

Expected Behavior:

Name tags and text displays would not render brighter in dark areas when behind blocks or entities.