Google Calendar Weekend Highlighter

manifest.json

{
  "action": {
    "default_icon": {
      "19": "icon19.png",
      "38": "icon38.png"
    }
  },
  "background": {
    "service_worker": "background.js"
  },
  "content_scripts": [
    {
      "all_frames": true,
      "js": [
        "script.js"
      ],
      "matches": [
        "https://calendar.google.com/*"
      ],
      "run_at": "document_idle"
    }
  ],
  "description": "Custom Colour for Weekends in Google Calendar",
  "icons": {
    "16": "icon16.png",
    "32": "icon32.png",
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "manifest_version": 3,
  "name": "Google Calendar Weekend Highlighter",
  "options_ui": {
    "open_in_tab": true,
    "page": "options.html"
  },
  "permissions": [
    "storage",
    "contextMenus"
  ],
  "short_name": "GCalWeekendHighliter",
  "update_url": "https://clients2.google.com/service/update2/crx",
  "version": "2.1.4"
}