This repo contains different stylesheed edited to run with qbittorrent's style system
Icons used in dark themes are from nowshed-imran. They are meant to be icons for next qbittorrent major release (qbittorrent/qBittorrent#12965). Do give your opinions on the thread :)
This repo also contains different tool to create your own qbittorrent theme files.
You can check the source of above style in Builds folder