title: How to detect Night Mode event - CSS / JavaScript?
body: <p>Is there any CSS prefix for night mode or javascript event that trigger when user change the mode? I want custom colors for the element if the user enables night mode from the <a href="https://blogs.opera.com/mobile/2015/05/opera-mini-night-mode-reduces-eye-strain-night-browsing/" rel="nofollow noreferrer"><strong>browser setting</strong></a>.</p>
  
  <p>Thanks</p>