title: How to modify an extension from the Chrome Web Store?
body: <p>I've seen <a href="https://chrome.google.com/webstore/detail/chimneyswift11s-youtube-c/ghajlcgpoghfjldldggbiligiahgalmk/details">this extension</a> in the Chrome Web store, which shows the newest videos of a YouTube channel. I want to modify this extension in order to make it work with a different channel.</p>
  
  <p>How can I get this done?</p>