The status bar shows the status of all 7 screens. Each one will appear
as one of:

- Grey dot (.): Screen not in use (never opened, or has been closed).

- Grey number: Screen has no activity since you last looked at it.

- Green number: Screen has activity that you haven't seen yet.

- Red number: Screen has activity that's intended for you: a private
  message, or your nick has been mentioned in a channel (AKA you've
  been highlighted).

Note: the colors listed above can be changed in the Config tool or via
the /color command.

When a number is displayed, you can press Start and that number to
switch to that screen. Trying to switch to an unused screen won't
do anything.

When switching screens with Start+A, FujiNetChat goes to the
right-most (highest numbered) highlighted screen (red). If there
are no highlighted screens, it goes to the right-most active screen
(green). If there are no screens with activity, it doesn't change
screens.

Note that the current screen (the one you're looking at) will never be
red or green.

This works about like irssi's Meta-A key, except that irssi actually
keeps track of when each of its windows became active or highlighted,
and goes to the oldest one first. FujiNetChat just starts at the last
screen and works its way down.