The hello program is a minimal Qt application.

You can try out different fonts and colors.
Qt recognizes the following command line parameters:

  - display <display>
  - background <background color>, or -bg
  - foreground <foreground color>, or -fg
  - font <X font>, or -fn

The font setting does not work for the message box,
because it overrides with a Helvetica 12 point font.

Example:

  hello -fg blue -bg MistyRose
