Glad to see you read the entire thread before posting the first thought that came to your head.
Spells, torches, racials, and possibly item enchantments could allow you to continue playing in the darkness.
If you wanna play devils advocate please be more thoughtful in your replies.
Light and torch = no sneak.
Night-eye = [censored] blue filter that MAY potentially take cost you an arm, as in requiring you to equip and hold it.
I thought all these stuff is basic knowledge and did not really care to explain them. Also, turning down the in-game brightness setting makes your dark much darker while still having serviceable day.
On the other hand, if the two extremes are too far apart, adjusting the brightness will result in either too bright light or too dark darkness. Is that enough thought for you?