v3.8.3

The band and the pane, and the README section that shows them.

Fixed

• A phase being executed no longer reads planned. Nothing sets an
  executing status, so through a whole /cad-execute run the band and the
  pane's status chip said planned, beside a running cad-executor and a plans
  bar already partway done. Both now draw executing while the phase is
  planned and a cad-executor is running. It is display only: the cursor and
  the derived status keep their values. An executor that /cad-task --plan
  dispatches on a planned phase shows the same way, because the running list
  cannot tell the two apart.

Changed

• The README shows the pane. The section is now The pane, with a
  screenshot of it mid-execute, and it says that n puts the next command in
  the prompt. Its paragraph on what the module does besides drawing moved into
  The module's list.