Examine source code of Prettier Now

{
  "manifest_version": 2,
  "name": "__MSG_appName__",
  "description": "__MSG_appDescription__",
  "version": "0.1.0",
  "icons": {
    "16": "icons/16.png",
    "32": "icons/32.png",
    "48": "icons/48.png",
    "128": "icons/128.png"
  },
  "default_locale": "en",
  "homepage_url": "https://github.com/ntnyq/prettier-now",
  "permissions": [
    "storage",
    "contextMenus"
  ],
  "commands": {
    "openOptionsPage": {
      "description": "__MSG_openOptionsPage__",
      "suggested_key": {
        "default": "Alt+O"
      }
    }
  },
  "content_security_policy": "script-src 'self' 'wasm-unsafe-eval'; object-src 'self';",
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "browser_action": {
    "default_title": "Prettier Now",
    "default_popup": "popup.html"
  },
  "options_ui": {
    "open_in_tab": true,
    "page": "options.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{883cdd3a-c895-4644-8605-209f643f5fe4}"
    }
  }
}