Dark Theme for Planner Web App

manifest.json

{
  "update_url": "https://clients2.google.com/service/update2/crx",
  "name": "Dark Theme for Planner Web App",
  "manifest_version": 2,
  "version": "2.4",
  "description": "Dark mode for planner web application",
  "background": {
    "matches": [
      "*://tasks.office.com/*"
    ],
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "matches": [
        "*://tasks.office.com/*"
      ],
      "js": [
        "jquery.min.js",
        "delay_load.js"
      ],
      "run_at": "document_end"
    }
  ],
  "icons": {
    "16": "icon16.png",
    "48": "icon48.png",
    "128": "icon128.png"
  },
  "browser_action": {
    "name": "Change Theme",
    "default_icon": "icon128.png",
    "default_title": "Toggle theme mode"
  },
  "permissions": [
    "*://tasks.office.com/*"
  ]
}