Examine source code of SLAP LIKE NOW

{
  "manifest_version": 2,
  "name": "SLAP LIKE NOW",
  "version": "6.9",
  "description": "SLAPS LIKE NOW on all Davie504's EPIC BASS videos.",
  "icons": {
    "48": "icons/48.png",
    "96": "icons/96.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://*/*"
      ],
      "js": [
        "slap.js"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{b13e909a-130b-4164-83af-983a4bba2049}"
    }
  }
}