title: Can I detect the presence/absence of 'LED notification' on an Android device?
body: <p>Background: I have an app with notifications and I want to support LED notifications (and it's working perfectly). In my preferences, I allow the user to customize the LED notifications.</p>
  
  <p>Problem: I don't want to show the LED customization options if the device doesn't support them because it can possibly confuse the user (If all you've had were cheap Androids, you have no idea what LED notification is). Is there an API that I can use to detect if the device supports it?</p>
  
  <p>if there is an 'old' and a 'new' way, I'd probably prefer the old way as my lowest supported API level is 4.</p>
  
  <p>Thanks</p>
  
  <p><sub>LED notification: If enabled, your phone's LED will blink for notifications when your display is off.</sub></p>