Examine source code of EF30 Schedule Enhancer

{
  "manifest_version": 2,
  "name": "EF30 Schedule Enhancer",
  "description": "Add Eurofurence 30 events to your calendar, file after-midnight events under the right night, and style fixes.",
  "version": "1.0.0",
  "icons": {
    "16": "icon/16.png",
    "32": "icon/32.png",
    "48": "icon/48.png",
    "96": "icon/96.png",
    "128": "icon/128.png"
  },
  "developer": {
    "name": "Nick Nybbles"
  },
  "permissions": [
    "storage"
  ],
  "options_ui": {
    "page": "popup.html",
    "open_in_tab": false
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "ef30-schedule-enhancer@eurofurence.addons",
      "strict_min_version": "128.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  },
  "browser_action": {
    "default_icon": {
      "16": "icon/16.png",
      "32": "icon/32.png",
      "48": "icon/48.png",
      "96": "icon/96.png",
      "128": "icon/128.png"
    },
    "default_title": "EF30 Schedule Enhancer",
    "default_popup": "popup.html"
  },
  "content_scripts": [
    {
      "matches": [
        "https://cfp.eurofurence.org/ef-schedule-2026/*"
      ],
      "run_at": "document_start",
      "js": [
        "content-scripts/schedule-patch.js"
      ],
      "world": "MAIN"
    },
    {
      "matches": [
        "https://cfp.eurofurence.org/ef-schedule-2026/*"
      ],
      "run_at": "document_idle",
      "css": [
        "content-scripts/schedule.css"
      ],
      "js": [
        "content-scripts/schedule.js"
      ]
    }
  ]
}