Examine source code of SoundCloud Repost Remover

{
  "manifest_version": 2,
  "name": "SoundCloud Repost Remover",
  "version": "1.7.3",
  "description": "Removes Reposts from SoundCloud",
  "icons": {
    "48": "icons/Icon48.png",
    "96": "icons/Icon96.png"
  },
  "permissions": [
    "activeTab",
    "storage"
  ],
  "page_action": {
    "default_icon": "icons/Icon96.png",
    "default_title": "DVSProductions SC Repost Remover",
    "default_popup": "popup/stats.html",
    "show_matches": [
      "*://soundcloud.com/stream*"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.soundcloud.com/*"
      ],
      "js": [
        "rmRep.js"
      ]
    }
  ]
}