I switched after years of dark mode as well, just a few days ago. The initial reason that it is very hard to get a consistent nice dark-mode experience across applications; think for example pdfs (which look ugly w/ inverted colors), or screen flickering during load times of programs, non optimized websites, video content, et cetera.

solarized light, redshift and just turn screen brightness down and it actually still looks ugly to me, but regarding eye strain, having proper syntax highlighting, and being less annoyed about the things mentioned above, it is fine and I might stick to this setup; once you are focusing you don't notice the ugliness.

https://i.imgur.com/xakys4y.png

reminded me of ACME, so I guess rob was just spot on way back https://upload.wikimedia.org/wikipedia/commons/9/98/Acme.png