Examine source code of Single Key Shortcuts

{
  "manifest_version": 2,
  "name": "Single Key Shortcuts",
  "description": "Navigate by pressing a single key",
  "version": "0.0.4",
  "author": "jhoekx",
  "homepage_url": "https://github.com/jhoekx/singlekeyshortcuts",
  "permissions": [
    "storage"
  ],
  "icons": {
    "48": "icons/key-1.svg",
    "96": "icons/key-1.svg"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*/*",
        "file:///*"
      ],
      "js": [
        "singlekeyshortcuts.js"
      ],
      "run_at": "document_start"
    }
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "options_ui": {
    "page": "options.html",
    "browser_style": true
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{a2efbae9-2008-4cff-8bea-f07ceeab605c}"
    }
  }
}