It's not only mentioned quite often, it is especially in the article. They argue that dark mode only saves battery if:
* Dark mode is truly black (not dark grey) and
* You use OLED or AMOLED screens.
But when that's the case it can save up to 41% of energy. They then argue, that if dark mode were to be a health detriment, that would be more important than battery charge.
(Note: That's what they argue. There are results that show that power consumtion scales mostly linearly with output brightness. Which would contradict the results in the article.)
* Dark mode is truly black (not dark grey) and
* You use OLED or AMOLED screens.
But when that's the case it can save up to 41% of energy. They then argue, that if dark mode were to be a health detriment, that would be more important than battery charge.
(Note: That's what they argue. There are results that show that power consumtion scales mostly linearly with output brightness. Which would contradict the results in the article.)