Examine source code of QuickScripts

{
  "manifest_version": 2,
  "name": "QuickScripts",
  "version": "1.1.4",
  "description": "Allows the user to create a set of quick text replacements so you can automatically insert frequently used text based on text keys. Once you've created your text and keys just hit Ctrl+Shift+.",
  "applications": {
    "gecko": {
      "id": "quickscripts@advantsystems.com"
    }
  },
  "icons": {
    "48": "icons/quickscripts-48.png"
  },
  "permissions": [
    "activeTab",
    "storage"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "commands": {
    "replace-text": {
      "suggested_key": {
        "default": "Ctrl+Period"
      }
    }
  }
}