Discover Blackbox: A Minimalist GTK4 Terminal Emulator for Linux

Blackbox is a GTK4‑based terminal emulator for Linux, designed with a focus on appearance rather than extensive features.

Key highlights include theme support (compatible with Tilix color schemes), integration of theme with window decorations, custom fonts, various UI settings, tabs, toggleable title bar, clickable links, and drag‑and‑drop file support.

The default window shows a standard look:

The title bar can be hidden, revealing a popular GTK4 feature:

In header‑less mode, floating controls can be enabled:

Copy‑paste works with the familiar Ctrl+C / Ctrl+V shortcuts, and Blackbox offers an “Easy copy‑paste” setting that restores these shortcuts while preserving Ctrl+C for terminating processes.

Multiple light and dark themes are available, including Tilix‑style themes:

Users can switch themes, reset to defaults, and adjust advanced preferences such as remembering window size and pixel‑precise scrolling.

Installation requires Flatpak and the Flathub repository. The command is:

flatpak install flathub com.raggesilver.BlackBox

On Fedora and other Flatpak‑integrated distributions, Blackbox can also be installed via the software center:

After installation, launch it from the applications menu.

To uninstall, run:

flatpak uninstall flathub com.raggesilver.BlackBox

Conclusion: Blackbox provides a visually appealing terminal with sufficient features for everyday use, though it is still early in development and may crash when changing themes on some distributions.