Use a browser extension like Dark Reader to force a dark theme on the uTorrent Web interface.
If a dark theme is essential, switching to another BitTorrent client is the most reliable solution. utorrent dark theme
If you use uTorrent Web, darkening the interface is much easier because it runs through your browser. Use a browser extension like Dark Reader to
If you must stay with uTorrent for specific features (e.g., RSS, scheduler, bandwidth management), consider using as a stopgap, or run uTorrent inside a virtual machine with inverted colors. consider using as a stopgap