Examine source code of IssueExplorer

{
  "manifest_version": 2,
  "name": "IssueExplorer",
  "version": "0.1.2",
  "description": "Tailored for readers of Ruanyifeng's 科技爱好者周刊, it enhances each issue by providing relevant contents.",
  "icons": {
    "16": "icons/logo@16.png",
    "32": "icons/logo@32.png",
    "48": "icons/logo@48.png",
    "128": "icons/logo@128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.ruanyifeng.com/blog/*/*/weekly-issue-*.html"
      ],
      "js": [
        "source.js"
      ]
    }
  ],
  "permissions": [
    "https://atlas.brancraft.com/api/*"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{decaa310-3df8-404e-8f44-82159d864896}"
    }
  }
}