qBittorrentTray 
System tray icon for qBittorrent WebUI.
- Left-click pauses/resumes all torrents.
- Double-click open WEB UI in browser.
- Right click to change settings.
- Tray icon changes bases on status (active, paused, not available).
- Opening a .torrent with qBittorrentTray.exe adds torrent (and deletes .torrent after if set in settings).
Credit
- qBittorrent - A BitTorrent client in Qt
- qBittorrentSharp - C# library to work with the qBittorrent WebUI API
- Hardcodet.NotifyIcon.Wpf - Used for tray icon
- Json.NET - Popular high-performance JSON framework for .NET