This is the way.
I come into the office early in the morning when its still night and use the dark theme. When the sun comes out, I switch to light. Monitor brightness should blend into the surrounding light. Eye strain otherwise.

Reminds me of the time when we wrote an internal tool with strict SOLID principles. As new programmers came on, they had no idea what was going on cause no one in college told them about design patterns. Most of the OG’s quit soon after and the new guys remained.