Examine source code of GitHub Projects Plus

{
  "manifest_version" : 2 ,
  "version" : "2.0.9",
  "icons" : {
    "16" : "res/img/logo(16px).png",
    "48" : "res/img/logo(48px).png",
    "128" : "res/img/logo(128px).png"
  },
  "content_scripts" : [
    {
      "matches" : [
        "https://*/*" 
      ],
      "js" : [
        "bootstrap.js" 
      ],
      "css" : [
        "style.css" 
      ]
    }
  ],
  "web_accessible_resources" : [
    "res/img/label-tag-example.png"
  ],
  "permissions" : [
    "http://*/*" ,
    "https://*/*" 
  ],
  "name" : "GitHub Projects Plus",
  "description" : "Adds advanced labels management and other functionality to GitHub."
}