Nothing official
https://polaqu.fandom.com/wiki/Half-DrowHalf-Drow Traits (Ex)
Medium size.
A half-drow base land speed is 30 feet.
+2 bonus to Will saves (by females) to resist divine spells, and supernatural abilities.
+2 racial bonus on saving throws made to resist the effects of drow poison.
Darkvision out to 60-feet.
+1 racial bonus on Listen, Search, and Spot checks. A half-drow does not have the elf’s ability to notice secret doors simply by passing near them.
+2 racial bonus on Intimidate and Survival checks.
Drow-Elf Blood: For all effects related to race, a half-drow is considered a drow elf. Half-drow, for example, are just as vulnerable to special effects that affect an elf, or drow, as their drow ancestors are; and they can use magic items that are only usable by an elf, or the drow subrace.
Light Sensitivity: Half-Drow are dazzled in bright sunlight or within the radius of a daylight spell.
Automatic Languages: Common, Elven, Undercommon. Bonus Languages: Any (other than secret languages, such as Druidic).
Favored Class: Any.
For me in pen and paper, half drow that were raised on the surface from birth would not get the light sensitivity. Though a character I played was cloaked and hooded in most instances, when he stepped outside he would sneeze uncontrollably a couple times until adjusted to the light. Not sure if anyone else has experienced this in real life, but I have light blue eyes and going into the sun makes me sneeze. It was a humorous way to treat light sensitivity in the game as well.