I use vuetorrent on the web interface. It has a dark toggle. You just unzip the folder from github and point to the directory in qbittorrent

https://github.com/jagannatharjun/qbt-theme ~ perhaps this ? I used it in the past

Organizr from Theme Park as a docker mod for the LSIO image is working fine for me. https://docs.theme-park.dev/themes/qbittorrent/ https://docs.theme-park.dev/setup/#docker-mods

i like this one a lot, i use it in my gruvbox rice