Default Disable LED completely?

Hello! I already searched through all the thread suggestions you get when you try to create a new thread without result. So... My question is: how do you disable LED notifications COMPLETELY? For example, when I'm at the gym I don't want my phone to use the LED at all because it's annoying. Is there a widget or something that can disable the LED completely and then allows you to re-enable it at will? Thanks in advance

EDIT: NVM, found it. And it's actually made by Motorola. I feel so dumb
https://play.google.com/store/apps/d...rola.ledwidget