title: How to change the road color in Google My Maps
body: <p>Is there a way to change the road color in a <em>map</em> created with 
  <a href="https://mymaps.google.com/" rel="noreferrer">Google My Maps</a>?
  I want to make a screenshot of my map, but the color of all roads should be black. </p>
  
  <p>I tried to change the <code>CSS</code> via browser plugin <strong>Custom Style Script</strong> for Firefox without success. </p>
  
  <p>I found also <a href="https://mapstyle.withgoogle.com" rel="noreferrer">https://mapstyle.withgoogle.com</a>, but I think it doesn't help.</p>
  
  <p>Is there an way to change the road color of a <strong>Google My Map</strong>?</p>