Newer versions generally respect system-wide dark mode, but users have requested an override so they can keep their OS dark and FileZilla light (or vice versa).
But in the last few years, the community has asked a simple question: Can we make FileZilla dark? More importantly: Is a dark theme actually better? filezilla dark theme better
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Server maintenance doesn't care about the sun. If your server crashes at 3 AM, you need to fix it. Opening a white-hot FileZilla window in a dark room is like turning on a high-beam headlight inside a closet. Even with Windows' "Night Light" or macOS "True Tone" enabled, the sheer luminance of a pure white background suppresses melatonin production and keeps your brain alert when it should be winding down. Newer versions generally respect system-wide dark mode, but