Examine source code of Google Keep Chrome EV

{
  "manifest_version": 2,
  "name": "Google Keep Chrome Extension V2 Overview",
  "version": "1.2",
  "description": "Overview of Google Keep Chrome Extension V2 features and usage.",
  "icons": {
    "32": "icons/logo_32.png",
    "64": "icons/logo_64.png",
    "128": "icons/logo_128.png"
  },
  "browser_action": {
    "default_icon": {
      "32": "icons/logo_32.png",
      "64": "icons/logo_64.png",
      "128": "icons/logo_128.png"
    },
    "default_title": "Google Keep Chrome Extension V2 Overview",
    "default_popup": "popup.html"
  },
  "permissions": [],
  "browser_specific_settings": {
    "gecko": {
      "id": "{067e18ca-8879-4734-a8e4-072a2cef8a25}"
    }
  }
}