Greetings Pythonists and fans of British humor. This question may sound trivial to some of you, but the answer is not that obvious. From the panel, you can access your menus and quick-launchers. In addition, the panel can hold small programs, usually referred to as applets.
Applets are programs designed to run inside another program.
They are mini-applications. If, however, you ignore the difference in where they are located, panel applets are just like any other program. Well, this depends on what kind of program you want to create. On the other hand, if you want to develop a CD or MP3 player, and you want to be able to control this program all the time, no matter what other programs you're running, you should probably do it as a panel applet. The panel is always visible, and therefore so are the applets on the panel.