Examine source code of CasePilot

{
  "manifest_version": 2,
  "name": "CasePilot",
  "version": "1.0.3",
  "description": "Right-click selected text → Change case (upper/lower/title/sentence, invert, alternating, slug, kebab, snake, camel, Pascal, CONSTANT).",
  "permissions": [
    "contextMenus",
    "activeTab",
    "tabs"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "icons": {
    "48": "icons/case-app-48.png",
    "96": "icons/case-app-96.png",
    "128": "icons/case-app-128.png",
    "256": "icons/case-app-256.png"
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content-script.js"
      ],
      "run_at": "document_idle",
      "all_frames": true,
      "match_about_blank": true
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "strict_min_version": "58.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      },
      "id": "{6e502fc1-d3c8-4c7b-b5af-e69108e5a6f8}"
    }
  }
}