tint2 is a simple system panel/taskbar for Linux, ideal for users of window managers such as Openbox which do not provide a panel.
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Very lightweight with minimal resource use. Often used with lightweight window managers.
Pro Easy to theme and customize
You can easily tweak the panel and make it very good looking by using tint2-settings.
Pro Feature rich
Despite being lightweight, tint2 provides most options available for system panels including launchers, taskbar, system tray, clock.
Pro Panel as well as dock
Depending on configuration, tint2 can be a panel with taskbar, systemtry, menu, battery etc or as a standalone dock for launchers.
Pro Multi-instant support
Many instances of tint2 can be opened concurrently using different config files.
Pro Works as a simple dock for i3wm
Tiling WMs are great but sometimes the mouse is your friend too! Tint2 can easily be configured as a little dock for i3wm.
Con Unable to show workspace
The ability to show what workspace you're in, and which ones are being used (a la i3status/polybar) is about the only thing negative about Tint2.
Con No intelligent hide option
Tint2 provides autohide option but there's no way to autohide it when windows are maximized or overlap the panel.