Examine source code of Strava Feed Filter

{
  "manifest_version": 3,
  "name": "Strava Feed Filter",
  "version": "2.7.0",
  "description": "Filter activities on the Strava dashboard feed.",
  "permissions": [
    "storage",
    "tabs"
  ],
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "host_permissions": [
    "https://www.strava.com/*"
  ],
  "icons": {
    "16": "icons/icon-16.png",
    "32": "icons/icon-32.png",
    "48": "icons/icon-48.png",
    "96": "icons/icon-96.png",
    "128": "icons/icon-128.png",
    "256": "icons/icon-256.png"
  },
  "content_scripts": [
    {
      "matches": [
        "https://www.strava.com/*"
      ],
      "js": [
        "content/injected.js"
      ],
      "css": [
        "content/styles.css"
      ],
      "run_at": "document_end"
    }
  ],
  "web_accessible_resources": [
    {
      "resources": [
        "icons/*.svg"
      ],
      "matches": [
        "https://www.strava.com/*"
      ]
    }
  ],
  "action": {
    "default_title": "Strava Feed Filter",
    "default_popup": "popup/popup.html"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "strava-feed-filter@inc21",
      "strict_min_version": "109.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    }
  }
}