title: Atom IDE red highlighting issue
body: <p>This is best explained with a screen shot
  <a href="https://i.stack.imgur.com/Mank9.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/Mank9.png" alt="enter image description here"></a></p>
  
  <p>Why are Java keywords and random letters like 'AC' highlighted in red within the Atom IDE with Java language chosen?  I don't like this and would like to know why it is happening and how to turn it off.</p>