The screenshot shows the stars it displays plus the symbols for display of the Sun and planets. It shows the sky around midday so the sun is high in the south. Of course the stars would not be visible at this time but it shows them displayed. The obvious symbol is of course the moon which is at last quarter and would be visible before sunrise. There are a number of settings that can be made to the screen saver, such as turning the star names on or off.
Screen savers are fun.
This is one of the best if you like the night sky. Try it when the room is dark too.