[grumblestumble]

Laptop displays are unfortunately limited to the "good enough" solution of additive light. We're stuck with it because it works well enough, so it's not important to sink tons of money and research in bringing e-ink style displays up to par. As a result, "light mode" means bombarding your eyes with... light. This is not good. Dark pixels are pixels that emit less light. This is much better for your eyes.