QT_SCALE_FACTOR=1.5 qbittorrent Caveat: UI elements may clip or overlap.

At first glance, qBittorrent seems stubborn. There is no "Increase Font Size" slider in the main preferences. This absence isn't an oversight but a philosophical choice rooted in its reliance on native Qt frameworks. However, dismissing it as inflexible would be a mistake. Under the hood, qBittorrent offers four distinct layers of typographic control, ranging from the dead-simple to the surgically precise. Before hacking config files, understand that qBittorrent is a Qt-based application. It inherits its default scaling behavior from the OS environment variable QT_SCALE_FACTOR .

[Qt] styleSheet="" fontName="Segoe UI" fontSize=12 Wait. That does nothing for the main UI. The critical parameter is hidden: