title: Change the color of all elements
body: <p>I'm looking to change the 'accent' color of a website. Does anyone know an efficient way to change the background-color, color and border-color of all elements with the color 'magenta' for example? Is there a way to detect for the property magenta in the CSS file and replace it with another color? I am building an extension for a website (and would prefer not to append a massive CSS file with the color change) and cannot change the source code of the site.</p>
  
  <p>If there is anything unclear please feel free to ask.</p>