title: Add New Entry and Gives Automatic Background Color
body: <p>Is it possible in Google Sheet, that every time I add a new entry in sheet1 column A, it would have a background color not the same with the previous entries? And in sheet2, column D, if the entry was added, it will get the background color that it has in sheet1?</p>
  
  <p>How can I do it in app script?</p>