FileZilla stores theming overrides here: %APPDATA%/FileZilla/fzdefaults.xml.
Before updating, copy this file to your desktop. After updating, replace it.
Until FileZilla adds native dark mode, the most consistent dark experience is:
As of early 2026, FileZilla does not have a native "Dark Mode" toggle in its settings. Instead, the application relies on the underlying wxWidgets library to inherit the color scheme of your operating system. Current Status & Roadmap
Version 3.70.0 (April 2026): The latest version history does not list a dedicated internal dark mode toggle as a new feature. filezilla dark theme upd
Roadmap: Development is currently focused on the 3.3.x and 3.4.x branches. Major internal GUI changes, potentially including improved dark mode handling, are projected for Version 3.4.0 later in 2026.
Technical Barrier: Developers have stated that FileZilla's cross-platform library (wxWidgets) historically lacked native support for Windows' modern dark mode API without breaking compatibility for other operating systems. Recent versions of wxWidgets (3.3+) have introduced better support, which may lead to future native updates. How to Enable Dark Theme Now
You can achieve a dark look by changing your system-wide settings, which FileZilla will attempt to follow: Windows 10/11: As of early 2026, FileZilla does not have
Standard Method: Go to Settings > Personalization > Colors and choose Dark. While this affects many apps, FileZilla sometimes requires the more aggressive Contrast Themes (found under Accessibility) to fully invert its classic Win32-style window colors. macOS:
Enable system-wide Dark Mode in System Settings > Appearance. Recent versions of FileZilla on macOS follow this setting automatically. Linux:
The client typically follows the system’s GTK theme. Users on distributions like openSUSE or Ubuntu can switch their system appearance to "Dark" in the settings tray to update FileZilla's UI. Alternative Customization FEEDBACK: Dark Mode please - FileZilla Forums As of early 2026
Historically, FileZilla did not support a native dark mode on Windows. Users had to rely on hacky manifests or system-wide overrides. However, with the release of FileZilla Pro 3.67+ and the standard FileZilla Client 3.66+, the developers have slowly introduced partial theming support.
The "UPD" in your search query reflects a community-driven effort to track the latest changes. As of 2025, the situation is:
While you cannot change the main file lists to dark without the manifest method above, you can darken the top message log area natively.