Examine source code of CoolBox

{
  "content_scripts": [
    {
      "js": [
        "src/entries/contentScript/allPages.js"
      ],
      "css": [
        "assets/src/assets/css/icons-BSoVTXzN.css",
        "assets/src/assets/css/all_pages-DnV2vZoc.css"
      ],
      "matches": [
        "*://schoolbox.donvale.vic.edu.au/*"
      ]
    },
    {
      "js": [
        "src/entries/contentScript/homepage/beforePageLoad.js"
      ],
      "matches": [
        "*://schoolbox.donvale.vic.edu.au/*"
      ],
      "run_at": "document_start"
    },
    {
      "css": [
        "assets/src/assets/css/homepage-CEYM0-Dt.css"
      ],
      "matches": [
        "*://schoolbox.donvale.vic.edu.au/"
      ]
    },
    {
      "css": [
        "assets/src/assets/css/news_item-CwRWStAH.css"
      ],
      "matches": [
        "*://schoolbox.donvale.vic.edu.au/news/*"
      ]
    }
  ],
  "icons": {
    "64": "icons/icon.png"
  },
  "permissions": [
    "storage",
    "scripting",
    "cookies",
    "notifications",
    "alarms",
    "*://schoolbox.donvale.vic.edu.au/*",
    "*://api.coolbox.lol/*"
  ],
  "options_ui": {
    "page": "src/entries/options/index.html",
    "open_in_tab": true,
    "chrome_style": false
  },
  "author": "TorNato & SleepyStew",
  "description": "An extension to extend and customise Schoolbox.",
  "name": "Coolbox",
  "version": "1.1.12",
  "manifest_version": 2,
  "background": {
    "persistent": true,
    "page": "background.html"
  },
  "browser_action": {
    "default_icon": {
      "64": "icons/icon.png"
    },
    "default_popup": "src/entries/popup/index.html"
  },
  "web_accessible_resources": [
    "assets/allPages-CEKmNi3h.css",
    "assets/browser-polyfill-fLdGK9jX.js",
    "assets/client-CDR9e3IJ.js",
    "assets/componentUtils-DFnFEag9.js",
    "assets/src/entries/contentScript/allPages-bNqHVQEm.js",
    "assets/src/entries/contentScript/homepage/beforePageLoad-Cvdz5qNS.js",
    "assets/themePresets-DW3J-1gX.js"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "extension@coolbox.lol"
    }
  }
}