title: Android Material Design Divider Color
body: <p>Following <a href="http://www.google.com/design/spec/style/color.html#color-ui-color-application" rel="noreferrer">color UI application</a> of Material design i want to use an divider for the white theme. Guide 
  <a href="https://i.stack.imgur.com/ZirhN.png" rel="noreferrer">told me</a>
  that divider have 12% of white color, but <strong>how i can define 12% of white color divider in xml</strong> layout file?</p>
  
  <p><img src="https://i.stack.imgur.com/yRIUp.png" alt="enter image description here"></p>