A better YouTube Interface
YT Gamify Extension
YT Gamify allows you to apply the new YouTube Gaming Interface to classic YouTube links.
Read more
Source Manifest.json
{"update_url": "https://clients2.google.com/service/update2/crx",\t"manifest_version": 2,\t"name": "YT Gamify",\t"version": "1.4",\t"description": "A better YouTube Interface",\t"icons": { "48" : "48.png", "128":"128.png" },\t"background": { "page" : "bg.html" },\t"content_scripts":\t[{\t\t"matches": ["http://*.youtube.com/*", "https://*.youtube.com/*"],\t\t"js" : ["script.js"],\t\t"run_at" : "document_start"\t}],\t"permissions": ["storage", "http://*.youtube.com/*", "https://*.youtube.com/*"],\t"browser_action": { "default_popup": "options.html" },\t"options_ui":\t{ \t"page": "options.html",\t\t"chrome_style": true\t}}
Read more