draw_normal_mode()

  if Display_settings.mode == nil then
    draw_normal_mode()
  elseif Display_settings.mode == 'maximize' then
    local pane = Surface[Cursor_pane.col][Cursor_pane.row]
    pane.top = Header_height + Margin_above
    pane.left = App.screen.width/2 - 20*App.width(Em)
    pane.right = App.screen.width/2 + 20*App.width(Em)
    edit.draw(pane)
  else
    print(Display_settings.mode)
    assert(false)
  end

  if Display_settings.mode == nil then
    mouse_pressed_in_normal_mode(x,y, mouse_button)
  elseif Display_settings.mode == 'maximize' then
    local pane = Surface[Cursor_pane.col][Cursor_pane.row]
    edit.mouse_pressed(pane, x,y, mouse_button)
  else
    print(Display_settings.mode)
    assert(false)
  end
end
function mouse_pressed_in_normal_mode(x,y, mouse_button)

  elseif Display_settings.mode == 'maximize' then
    local pane = Surface[Cursor_pane.col][Cursor_pane.row]
    edit.textinput(pane, t)

  elseif Display_settings.mode == 'maximize' then
    handle_maximize_mode_keychord(chord, key)

end
function handle_maximize_mode_keychord(chord, key)
  -- global hotkeys
  if chord == 'C-return' then
    Display_settings.show_palette = true
    return
  end
  -- operate on pane
  local pane = Surface[Cursor_pane.col][Cursor_pane.row]
  if chord == 'C-e' then
    if pane.show_cursor then
      command.exit_editing()
    else
      command.edit_note_at_cursor()
    end
  end
  edit.keychord_pressed(pane, chord, key)

  'maximize',

function command.maximize()
  Display_settings.mode = 'maximize'
end