Examine source code of SC GitHub Helper

{
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      },
      "id": "{9576101d-d856-4dda-b1c2-1c8c3c173114}",
      "strict_min_version": "102.0"
    }
  },
  "content_scripts": [
    {
      "matches": [
        "https://github.com/*/*/issues/*",
        "https://github.com/*/*/pull/*",
        "https://github.com/orgs/*/projects/*"
      ],
      "css": [
        "content-issue-view.css"
      ]
    }
  ],
  "description": "Tweaks to GitHub.com behavior to help developers, such as with a PR default branch different from GH default.",
  "icons": {
    "16": "images/icon-16.png",
    "32": "images/icon-32.png",
    "48": "images/icon-48.png",
    "128": "images/icon-128.png"
  },
  "manifest_version": 2,
  "name": "SC GitHub Helper",
  "options_ui": {
    "page": "options.html",
    "browser_style": true,
    "open_in_tab": true
  },
  "permissions": [
    "activeTab",
    "storage",
    "tabs",
    "*://github.com/*",
    "webNavigation"
  ],
  "version": "0.11.7"
}