Examine source code of Estimate Microsoft Planner

{
  "author": "Kumar Kislay, kumar.kislay@csgi.com",
  "browser_specific_settings": {
    "gecko": {
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      },
      "id": "planner-estimation@local.dev",
      "strict_min_version": "140.0"
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  },
  "content_scripts": [
    {
      "css": [
        "bootstrap-iso.css",
        "estimates.css",
        "labels.css"
      ],
      "js": [
        "planner-shared.js",
        "estimates.js",
        "labels.js"
      ],
      "matches": [
        "https://tasks.office.com/*/Planner*",
        "https://planner.cloud.microsoft/*"
      ],
      "run_at": "document_end"
    }
  ],
  "description": "Planner estimates plus quick label filtering for tasks in use",
  "icons": {
    "16": "icon-16.png",
    "48": "icon-48.png",
    "128": "icon-128.png"
  },
  "manifest_version": 3,
  "name": "Estimate Microsoft Planner",
  "short_name": "Planner Estimations",
  "version": "0.2.7"
}