Examine source code of NBA Player Stats

{
  "manifest_version": 3,
  "name": "NBA Player Stats",
  "version": "1.0.0",
  "action": {
    "default_popup": "index.html"
  },
  "permissions": [
    "storage"
  ],
  "icons": {
    "16": "src/icons/icon16.png",
    "32": "src/icons/icon32.png",
    "48": "src/icons/icon48.png",
    "128": "src/icons/icon128.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{a57d7353-1fed-4f84-bc11-ea1c462cd6c1}",
      "strict_min_version": "42.0"
    }
  },
  "description": "NBA player stats is a web extension that displays daily and season average stats of players for users to see and compare stats."
}