Like in ROS-1, the rqt console is available in ROS-2 as well. Most of the plugins from ROS-1 rqt are ported and reused in ROS-2 rqt. You can find an available list of plugins here: http://wiki.ros.org/rqt/Plugins. Some of the notable advantages of rqt are as follows:

• There's a GUI console, which is interactive and controls process startup and shutdown states.
• More than one widget can be docked in one window.

• You can use already available Qt plugins and convert them into custom rqt plugins.
• It supports multiple languages (such as Python and C++) and multiple platforms (on which ROS runs).

Now, let's learn how to install ROS-2 since we have basic knowledge of the ROS-2 client libraries and tools and have covered ROS-2 fundamentals.