Examine source code of Bel-Com RSS + Radios

{
  "manifest_version": 2,
  "name": "Bel-Com RSS + Radios",
  "version": "1.0.3",
  "description": "Extension combinée avec un lecteur radio et les derniers sujets de Bel-Com.com.",
  "permissions": [
    "storage",
    "https://quincy.torontocast.com/*",
    "http://belrtl.ice.infomaniak.ch/*",
    "https://api.rss2json.com/*",
    "https://www.bel-com.be/*",
    "http://ecmanager.pro-fhi.net/*",
    "https://scdn.nrjaudio.fm/*",
    "http://europe1.lmn.fm/*",
    "http://icecast.radiofrance.fr/*",
    "http://jazzradio.ice.infomaniak.ch/*",
    "http://radio.rtbf.be/*",
    "http://stream.rcs.revma.com/*",
    "http://icecast.rtl.fr/*",
    "http://icecast.rtl2.fr/*",
    "http://icecast.skyrock.net/*",
    "http://live.funradio.be/*",
    "http://sudradio.ice.infomaniak.ch/*"
  ],
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": "icon.png"
  },
  "icons": {
    "48": "icon.png"
  },
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": true
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "radio-rss-extension@example.com",
      "strict_min_version": "68.0"
    }
  }
}