screen_lines = Lines[Cursor1.line].screen_line_starting_pos

  local screen_lines = Lines[Cursor1.line].screen_line_starting_pos

  -- duplicate some logic from Text.draw

  if line.screen_line_starting_pos then
    return
  end
  -- duplicate some logic from Text.draw

--?         print(' ', #line.screen_line_starting_pos, line.data)