Examine source code of Spotify Ads Muter

{
  "manifest_version": 2,
  "name": "Spotify Ads Muter",
  "version": "1.1.0",
  "description": "Mute all kinds of Ads on open.spotify.com",
  "author": "elcoreman",
  "icons": {
    "16": "icon16.png",
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "permissions": [
    "*://open.spotify.com/*"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://open.spotify.com/*"
      ],
      "js": [
        "content.js"
      ]
    }
  ]
}