Examine source code of DTU After Dark

{
  "manifest_version": 2,
  "name": "DTU After Dark",
  "version": "6.2.1",
  "description": "Dark mode, live bus departures, and GPA tools for DTU Learn, CampusNet, and other DTU sites.",
  "browser_specific_settings": {
    "gecko": {
      "id": "dtu-dark-mode@dtu-after-dark",
      "strict_min_version": "140.0"
    }
  },
  "icons": {
    "48": "images/icon_48.png",
    "128": "images/icon_128.png"
  },
  "permissions": [
    "storage",
    "https://api.mazemap.com/*",
    "https://www.rejseplanen.dk/*",
    "https://karakterer.dtu.dk/*",
    "https://findit.dtu.dk/*",
    "https://evaluering.dtu.dk/*",
    "https://sdb.dtu.dk/*",
    "https://student.dtu.dk/*",
    "https://eksamensplan.dtu.dk/*",
    "https://sts.ait.dtu.dk/*",
    "https://www.dtu.dk/*",
    "https://www.bibliotek.dtu.dk/*",
    "https://dtu-library-trends.ephixainsomniation.workers.dev/*"
  ],
  "background": {
    "scripts": [
      "background.js"
    ],
    "persistent": false
  },
  "web_accessible_resources": [
    "images/dtuaften.jpg",
    "images/logo_dark.png",
    "images/Corp_White_Transparent.svg",
    "images/mojangles_text.png",
    "images/mojangles_text_darkmode_off.png",
    "darkmode.css"
  ],
  "content_scripts": [
    {
      "matches": [
        "*://learn.inside.dtu.dk/*"
      ],
      "js": [
        "config.js",
        "darkmode.js",
        "darkmode.dark-engine.js",
        "darkmode.learn-accent-shell.js",
        "darkmode.smart-room-linker.js",
        "darkmode.book-finder.js",
        "darkmode.learn-nav.js",
        "darkmode.learn-shell.js",
        "darkmode.settings.js",
        "darkmode.bus.js",
        "darkmode.content-shortcut.js",
        "darkmode.participant-intel-host.js",
        "darkmode.participant-intel-core.js",
        "darkmode.participant-intel-scoring.js",
        "darkmode.library.js",
        "darkmode.deadlines.js",
        "darkmode.lessons-bulk.js",
        "darkmode.semester-twins.js"
      ],
      "run_at": "document_start",
      "all_frames": true,
      "match_about_blank": true
    },
    {
      "matches": [
        "*://s.brightspace.com/*"
      ],
      "js": [
        "config.js",
        "darkmode.js",
        "darkmode.dark-engine.js",
        "darkmode.smart-room-linker.js",
        "darkmode.host-shells.js"
      ],
      "run_at": "document_start",
      "all_frames": true,
      "match_about_blank": true
    },
    {
      "matches": [
        "*://sts.ait.dtu.dk/*"
      ],
      "js": [
        "config.js",
        "darkmode.js",
        "darkmode.dark-engine.js",
        "darkmode.smart-room-linker.js"
      ],
      "run_at": "document_start",
      "all_frames": true
    },
    {
      "matches": [
        "*://evaluering.dtu.dk/*"
      ],
      "js": [
        "config.js",
        "darkmode.js",
        "darkmode.dark-engine.js",
        "darkmode.smart-room-linker.js"
      ],
      "run_at": "document_start",
      "all_frames": true
    },
    {
      "matches": [
        "*://studieplan.dtu.dk/*"
      ],
      "js": [
        "config.js",
        "darkmode.js",
        "darkmode.dark-engine.js",
        "darkmode.smart-room-linker.js",
        "darkmode.studyplanner-shell.js",
        "darkmode.studyplan-runtime.js",
        "darkmode.studyplan-exams.js"
      ],
      "run_at": "document_start",
      "all_frames": true
    },
    {
      "matches": [
        "*://kurser.dtu.dk/*"
      ],
      "js": [
        "config.js",
        "darkmode.js",
        "darkmode.dark-engine.js",
        "darkmode.smart-room-linker.js",
        "darkmode.studyplanner-shell.js",
        "darkmode.kurser-widgets.js",
        "darkmode.kurser-course-eval.js",
        "darkmode.kurser-textbooks.js"
      ],
      "run_at": "document_start",
      "all_frames": true
    },
    {
      "matches": [
        "*://karakterer.dtu.dk/*"
      ],
      "js": [
        "config.js",
        "darkmode.js",
        "darkmode.dark-engine.js",
        "darkmode.smart-room-linker.js"
      ],
      "run_at": "document_start",
      "all_frames": true
    },
    {
      "matches": [
        "*://sites.dtu.dk/*"
      ],
      "js": [
        "config.js",
        "darkmode.js",
        "darkmode.dark-engine.js",
        "darkmode.smart-room-linker.js"
      ],
      "run_at": "document_start",
      "all_frames": true
    },
    {
      "matches": [
        "*://campusnet.dtu.dk/*"
      ],
      "js": [
        "config.js",
        "darkmode.js",
        "darkmode.dark-engine.js",
        "darkmode.smart-room-linker.js",
        "darkmode.host-shells.js",
        "darkmode.participant-intel-host.js",
        "darkmode.participant-intel-core.js",
        "darkmode.participant-intel-scoring.js",
        "darkmode.campusnet-gpa.js",
        "darkmode.participant-intel-ui.js",
        "darkmode.participant-intel-backfill.js",
        "darkmode.semester-twins.js"
      ],
      "run_at": "document_start",
      "all_frames": true
    },
    {
      "matches": [
        "*://eksamensplan.dtu.dk/*"
      ],
      "js": [
        "config.js",
        "darkmode.js",
        "darkmode.dark-engine.js",
        "darkmode.smart-room-linker.js"
      ],
      "run_at": "document_start",
      "all_frames": true
    }
  ]
}