I think it's because the person playing has the game's brightness turned down, if they turned it up a bit more you could probably see a little bit more, granted not that much more, but maybe.
Speaking of which these two games are worth a mention, but please don't go rushing to get them as this is purely speculation.
In Star Wars: Battlefront 2 (2017) you play as female protagonist Iden Versio. In this one level you kill a platoon of stormtroopers made up of both male and Female troopers, after this she gets the idea to get to the upper levels in disguise, in the next scene she's seen wearing a stormtroopers uniform, so it really not hard to imagine that she took it from one of the Female stormtroopers she just took out.
In Marvel's Avengers (2020) one of the avengers main enemy faction is the Hive, again made up of both male and Female troopers, now this all happens off screen but when we first see Black Widow she's in disguise and wearing a hive troopers uniform, now it's not hard to think that maybe she jumped one of the Female Hive jetpack troopers, knocked her out and stole her uniform.
.......Again both scenes are left to the imagination but judging by the events just prior to them, it's not that hard to imagine.
