Examine source code of Show Me More

{
  "manifest_version": 2,
  "name": "Show Me More",
  "version": "1.0.3",
  "description": "Navigate through image sequences, record and share image collections",
  "author": "LAUVz",
  "homepage_url": "http://showmemore.eu/",
  "icons": {
    "48": "icons/show-me-more-48.png",
    "96": "icons/show-me-more-96.png"
  },
  "permissions": [
    "tabs",
    "storage",
    "contextMenus",
    "notifications",
    "webRequest",
    "<all_urls>"
  ],
  "browser_action": {
    "default_icon": {
      "16": "icons/show-me-more-16.png",
      "32": "icons/show-me-more-32.png"
    },
    "default_title": "Show Me More",
    "default_popup": "popup/popup.html"
  },
  "background": {
    "scripts": [
      "background/background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "<all_urls>"
      ],
      "js": [
        "content/content.js"
      ],
      "css": [
        "content/content.css"
      ],
      "run_at": "document_end"
    }
  ],
  "web_accessible_resources": [
    "icons/add_recorded_icon.svg",
    "icons/add_recorded_icon_dark.svg"
  ],
  "commands": {
    "prev-image": {
      "suggested_key": {
        "default": "Alt+Left"
      },
      "description": "Go to previous image in sequence"
    },
    "next-image": {
      "suggested_key": {
        "default": "Alt+Right"
      },
      "description": "Go to next image in sequence"
    },
    "show-all": {
      "suggested_key": {
        "default": "Alt+A"
      },
      "description": "Show all images in sequence"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{e00d394d-2237-4943-94d4-047aedd0c6fa}"
    }
  }
}