Examine source code of Best Sonic Todo List

{
  "manifest_version": 2,
  "name": "Best Sonic Todo List",
  "version": "2.9.0",
  "description": "Simplifiez votre quotidien en gerer vos taches efficacement.",
  "permissions": [
    "storage"
  ],
  "browser_specific_settings": {
    "gecko": {
      "id": "{b393231e-5866-488e-9002-7007092c674a}",
      "strict_min_version": "128.0"
    }
  },
  "author": "Oliver Y.",
  "icons": {
    "48": "icons/icon-48.png",
    "96": "icons/icon-96.png"
  },
  "browser_action": {
    "default_popup": "popup.html",
    "default_icon": {
      "48": "icons/icon-48.png"
    }
  }
}