Examine source code of Soccer Streamlined

{
  "manifest_version": 2,
  "name": "Soccer Streamlined",
  "version": "1.57",
  "description": "This extension is no longer useful. Reddit is not active with soccer streams anymore.",
  "icons": {
    "16": "images/icon-16.png",
    "24": "images/icon-24.png",
    "32": "images/icon-32.png",
    "48": "images/icon-48.png",
    "128": "images/icon-128.png"
  },
  "browser_action": {
    "default_icon": {
      "16": "images/icon-16.png",
      "24": "images/icon-24.png",
      "32": "images/icon-32.png",
      "48": "images/icon-48.png",
      "128": "images/icon-128.png"
    },
    "default_title": "Soccer Streamlined",
    "default_popup": "popup.html"
  }
}