Examine source code of SwissCanyons

{
  "manifest_version": 2,
  "name": "SwissCanyons",
  "version": "3.3.2",
  "browser_specific_settings": {
    "gecko": {
      "id": "Flipsi2412@web.de"
    }
  },
  "description": "Enriches the Swiss Canyons with hydrodata and weather forecasts",
  "icons": {
    "16": "icons/schweiz_16.png",
    "24": "icons/schweiz_24.png",
    "32": "icons/schweiz_32.png",
    "128": "icons/schweiz_128.png"
  },
  "content_scripts": [
    {
      "matches": [
        "*://*.opencanyon.org/*"
      ],
      "js": [
        "content/enrichGeneral.js"
      ],
      "css": [
        "styles/hide-nav.css"
      ],
      "run_at": "document_start"
    },
    {
      "matches": [
        "*://*.opencanyon.org/de",
        "*://*.opencanyon.org/en",
        "*://*.opencanyon.org/fr"
      ],
      "js": [
        "content/utils.js",
        "content/user.js",
        "content/canyon.js",
        "content/enrichMain.js"
      ],
      "css": [
        "styles/hide-original.css"
      ],
      "run_at": "document_start"
    },
    {
      "matches": [
        "*://*.opencanyon.org/*/canyon/*"
      ],
      "js": [
        "content/utils.js",
        "content/enrichCanyon.js"
      ]
    },
    {
      "matches": [
        "*://*.opencanyon.org/*/map"
      ],
      "js": [
        "libs/ol.js",
        "libs/nouislider.min.js",
        "content/utils.js",
        "content/user.js",
        "content/canyon.js",
        "content/map.js",
        "content/enrichMap.js"
      ],
      "run_at": "document_end"
    },
    {
      "matches": [
        "*://*.opencanyon.org/*/userlist"
      ],
      "js": [
        "libs/ol.js",
        "content/utils.js",
        "content/user.js",
        "content/canyon.js",
        "content/map.js",
        "content/enrichUserList.js"
      ],
      "run_at": "document_end"
    },
    {
      "matches": [
        "*://*.opencanyon.org/*/profile/*"
      ],
      "js": [
        "libs/ol.js",
        "content/utils.js",
        "content/user.js",
        "content/canyon.js",
        "content/map.js",
        "content/enrichProfile.js"
      ],
      "run_at": "document_start"
    }
  ],
  "background": {
    "scripts": [
      "content/loadRef.js"
    ]
  },
  "permissions": [
    "storage",
    "tabs",
    "activeTab",
    "https://*.meteoswiss-app.ch/*",
    "https://*.admin.ch/*",
    "<all_urls>",
    "https://*/*",
    "https://www.meteoschweiz.admin.ch/*",
    "https://www.opencanyon.org/*"
  ],
  "web_accessible_resources": [
    "resources/ReferenzWasser.json",
    "resources/Ssvg.svg",
    "libs/*",
    "content/filter.html"
  ]
}