Examine source code of Sauce for Strava™

{
  "manifest_version": 3,
  "default_locale": "en",
  "name": "Sauce for Strava™",
  "short_name": "Sauce",
  "description": "__MSG_app_desc__",
  "homepage_url": "https://www.sauce.llc",
  "author": "Sauce, LLC",
  "version": "8.10.2",
  "permissions": [
    "storage",
    "unlimitedStorage",
    "contextMenus",
    "alarms"
  ],
  "icons": {
    "16": "images/icon16.png",
    "32": "images/icon32.png",
    "48": "images/icon48.png",
    "64": "images/icon64.png",
    "128": "images/icon128.png",
    "256": "images/icon256.png"
  },
  "action": {
    "default_icon": {
      "19": "images/icon19.png",
      "38": "images/icon38.png",
      "48": "images/icon48.png",
      "64": "images/icon64.png",
      "128": "images/icon128.png",
      "256": "images/icon256.png"
    },
    "default_title": "Sauce for Strava™",
    "default_popup": "pages/options.html?popup"
  },
  "options_ui": {
    "page": "pages/options.html",
    "open_in_tab": true
  },
  "content_scripts": [
    {
      "run_at": "document_start",
      "matches": [
        "https://www.strava.com/*"
      ],
      "js": [
        "src/ext/webext.js",
        "src/common/base.js",
        "src/common/base_init.js",
        "src/common/proxy.js",
        "src/ext/proxy.js",
        "src/common/storage.js",
        "src/ext/storage.js",
        "src/ext/locale.js",
        "src/ext/boot.js"
      ]
    },
    {
      "run_at": "document_start",
      "matches": [
        "https://www.strava.com/*"
      ],
      "world": "MAIN",
      "js": [
        "src/site/base.js",
        "src/site/preloader.js",
        "src/site/base_init.js"
      ]
    },
    {
      "run_at": "document_start",
      "matches": [
        "https://www.strava.com/activities/*"
      ],
      "world": "MAIN",
      "js": [
        "src/site/export_activity_photos.js"
      ]
    },
    {
      "run_at": "document_start",
      "matches": [
        "https://www.strava.com/*"
      ],
      "css": [
        "css/common.css"
      ]
    },
    {
      "run_at": "document_start",
      "matches": [
        "https://www.strava.com/sauce/*"
      ],
      "css": [
        "css/repurpose.css"
      ]
    }
  ],
  "web_accessible_resources": [
    {
      "matches": [
        "https://www.strava.com/*"
      ],
      "resources": [
        "build.json",
        "src/*",
        "lib/*",
        "css/*",
        "templates/*",
        "images/*",
        "pages/*"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{0f1b4c25-4ab0-411e-ba22-e56c27f3d151}",
      "strict_min_version": "128.0"
    }
  },
  "background": {
    "type": "module",
    "scripts": [
      "src/bg/main.mjs"
    ]
  }
}