I just shipped dark mode for ShowMuse. I didn't do it because it was a big deal for my roadmap. I did it because most of the time, when I'm editing or planning out clips, it's night time and I'm sick of my eyeballs being on FIRE.
No expense was spared on this revamp - every page, component, and CSS file was touched to make sure every page was aware of the theme that you choose... AND, when you switch from light to dark mode, we store the preference and it stays with your account. That means it works across devices!
Small thing? Maybe.
But when you're grinding through post-production at night, it matters.