Tiling terminal emulator made using Gtk+ 3
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Pro Tiling makes for ease of use
The user can split terminals horizontally or vertically, according to their needs or preferences.
Pro Transparent background
Unlike the standard GNOME Terminal, Terminix supports configurable background transparency.
Pro Integrates nicely into GNOME 3
Terminix follows the GNOME Human Interface Guidelines and uses the UI patterns of this desktop environment.
Pro Able to write into multiple terminals simultaneously
Inside a session you can select multiple terminals, which will receive the same input simultaneously.
Pro Multiple sessions inside a single window
Pro Fancy looks
Terminix has that new GNOME look, with a HeaderBar. It can also be disabled.
Pro Can be used as a drop-down terminal
The new 1.30 version of terminix supports a quake mode enabling it to work as a drop-down terminal.
Pro Configurable shortcuts
Many actions in Terminix can be triggered with configurable shortcuts.
Pro Extremely fast
As fast as gnome-terminal, if not faster.
Pro Terminus can notify you about finished tasks and perform actions based on terminal output
Pro Good alternative to Terminator
Tiling and ability to type into multiple terminals simultaneously is Terminator's 2 most significant features. Terminix has them as well.
Pro GNOME Human Interface Guidelines
Terminix follows GNOME HIG whereas gnome-terminal doesn't. GNOME should use Terminix as their default terminal