Examine source code of Kill-Sticky-Shortcut

{
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "browser_action": {
    "default_title": "Remove sticky elements"
  },
  "commands": {
    "_execute_browser_action": {
      "suggested_key": {
        "default": "Alt+Period",
        "mac": "Command+Period"
      }
    }
  },
  "description": "Remove all elements with fixed or sticky positions",
  "manifest_version": 2,
  "name": "Kill-Sticky-Shortcut",
  "permissions": [
    "activeTab"
  ],
  "version": "1.7.0",
  "browser_specific_settings": {
    "gecko": {
      "id": "{aff72382-db19-43e4-ae25-657acfdd60cd}"
    }
  }
}