Description
When the lightLevelMarkerCondition is set to Spawnable, the difference in minimum light level in the nether vs overworld isn't considered meaning many blocks are missing the light overlay incorrectly.

Expected
In the nether, setting lightLevelMarkerCondition to Spawnable makes the minimum light level 12 due to the zombie piglin's spawn rules and the piglin's (they're the same for light)

Actual
In the nether, setting lightLevelMarkerCondition to Spawnable makes the minimum light level 1