old_contents: from PyQt5.QtCore import Qt
  
  FREQ    =   [5, 6.67, 7, 8, 9]
  COLOR   =   [Qt.yellow, Qt.blue, Qt.gray, Qt. green, Qt.white]
  
new_contents: from PyQt5.QtCore import Qt
  
  FREQ    =   [5, 6.67, 7, 8, 9]
  COLOR   =   [Qt.yellow, Qt.blue, Qt.gray, Qt. green, Qt.white]
  TIME_FLASH_SEC  =   5
  TIME_REST_SEC   =   5
  
subject: Add durations in keyboard/config