Dark Theme Upd !!top!! — Filezilla

If you can't stand the high-contrast Windows theme, you can at least update FileZilla's icons to look better against a dark background.

Under that, appended like a handwritten afterthought, were a few lines that weren't JSON at all: filezilla dark theme upd

Note: This is still flagged as "Experimental" in the 2026 updates. It themes 80% of the UI but can break icon packs and column alignment. If you can't stand the high-contrast Windows theme,

The message log, local/remote directory trees, and transfer queue. What fails: The main toolbar icons (they remain high-contrast/light) and the settings dialog itself. This is why the community continues searching for "UPD" fixes. The message log, local/remote directory trees, and transfer

FileZilla doesn’t include a native dark theme toggle, but you can achieve a dark interface on using system compatibility settings, and on Linux via your desktop environment or custom Qt styles.