Examine source code of Di2va — Shimano Di2 Gear Overlay for Strava

{
  "manifest_version": 3,
  "name": "Di2va — Shimano Di2 Gear Overlay for Strava",
  "short_name": "Di2va",
  "version": "0.2.0",
  "description": "Visualize Shimano Di2 electronic gear shifts on Strava activity pages — gear-colored routes, elevation profiles, shift analysis and more.",
  "author": "vINF",
  "permissions": [
    "storage",
    "activeTab"
  ],
  "host_permissions": [
    "https://www.strava.com/*"
  ],
  "icons": {
    "16": "icons/icon16.png",
    "48": "icons/icon48.png",
    "128": "icons/icon128.png"
  },
  "action": {
    "default_icon": {
      "16": "icons/icon16.png",
      "48": "icons/icon48.png"
    },
    "default_title": "Di2va",
    "default_popup": "popup/popup.html"
  },
  "options_ui": {
    "page": "options/options.html",
    "open_in_tab": true
  },
  "background": {
    "scripts": [
      "background.js"
    ]
  },
  "content_scripts": [
    {
      "run_at": "document_idle",
      "matches": [
        "https://www.strava.com/activities/*"
      ],
      "js": [
        "content.js"
      ],
      "css": [
        "content.css"
      ]
    }
  ],
  "web_accessible_resources": [
    {
      "matches": [
        "https://www.strava.com/*"
      ],
      "resources": [
        "fit-worker.js",
        "icons/*"
      ]
    }
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "di2va@vinf.net",
      "strict_min_version": "140.0",
      "data_collection_permissions": {
        "required": [
          "none"
        ]
      }
    },
    "gecko_android": {
      "strict_min_version": "142.0"
    }
  }
}