title: values in dropdown of configurable products attributes in listing page of magento
body: <p>This is my product description page.
  <img src="https://i.stack.imgur.com/JeVaQ.png" alt="enter image description here"></p>
  
  <p>In the dropdown of color there is a list.i want this list (red,green,blue) in my product listing page.
  thats here:-<img src="https://i.stack.imgur.com/7DPCk.png" alt="enter image description here"></p>
  
  <p>How to get the value of configurable products in product listing page?</p>
  
  <p>Thanks in advance,</p>