Examine source code of Image Pixel Cleaner

{
  "manifest_version": 2,
  "name": "Image Pixel Cleaner",
  "version": "1.0",
  "description": "Detects and cleans noisy or dead pixels in images using a simple restoration algorithm.",
  "permissions": [
    "activeTab"
  ],
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content.js"
      ],
      "run_at": "document_idle"
    }
  ],
  "browser_action": {
    "default_icon": "icon.png",
    "default_title": "Image Pixel Cleaner"
  },
  "icons": {
    "48": "icon.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{3d7a0849-b865-43db-9e2a-9fa8b45f9b30}"
    }
  }
}