Term::Size is a Perl module which provides a straightforward way to
retrieve the terminal size.
Both functions take an optional filehandle argument, which defaults
to *STDIN{IO}. They both return a list of two values, which are the
current width and height, respectively, of the terminal associated with
the specified filehandle.
Term::Size::chars returns the size in units of characters, whereas
Term::Size::pixels uses units of pixels.
