BTW, white text on black is super annoying too many of us. 30% or more of your readers (actual readers) may experience difficulty with white on dark. Do you want to risk losing them?

See

https://www.essentialaccessibility.com/blog/accessibility-for-people-with-astigmatism

and

https://rxoptical.com/eye-health/is-dark-mode-better-for-your-eyes/