title: Different highlight style for ESLint errors in WebStorm
body: <p>I'm using WebStorm 2017.3 and ESLint.</p>
  
  <p>I'm wondering: is there a way to customize ESLint errors highlighting so I will be able to distinguish the WebStorm's errors (there is no closing bracket) and ESLint 'errors' (there should be a space before the bracket)?</p>
  
  <p>Currently, I can not distinguish critical typos and 'advices' of ESLint.</p>