Examine source code of PR Review Tool

{
  "manifest_version": 2,
  "name": "PR Review Tool Switcher",
  "version": "1.0",
  "description": "Navigate between Linear, GitHub, and Graphite PR review tools",
  "author": "Mike Carbone",
  "homepage_url": "https://github.com/mikecarbone",
  "browser_specific_settings": {
    "gecko": {
      "id": "pr-review-tool-switcher@knock.app",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "permissions": [
    "activeTab",
    "storage",
    "tabs"
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_title": "Switch review tool",
    "default_icon": {
      "48": "linearIcon.svg"
    }
  },
  "options_ui": {
    "page": "options.html",
    "open_in_tab": true
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "*://github.com/*/*/pull/*",
        "*://app.graphite.com/github/pr/*",
        "*://linear.app/*/review/*"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_idle"
    }
  ]
}