Upd - Filezilla Dark Theme

You can achieve a dark interface in FileZilla through system settings or by modifying the theme/icon set. 1. Windows 10/11/12 Dark Mode Integration

A more targeted, albeit hacky, approach involves telling the GTK engine that FileZilla uses to adopt a dark theme. This involves installing a GTK theme runtime and a dark theme, then launching FileZilla with a specific environment variable. filezilla dark theme upd

If you want a specific dark-optimized set, you can download custom .png or .svg icon packs from GitHub or the FileZilla forums and place them in the FileZilla resources folder. Method 3: Linux and macOS Advantage You can achieve a dark interface in FileZilla