Examine source code of Notes by URL

{
  "name": "Notes by URL",
  "description": "A simple note-taking extension that allows you to take notes on any webpage.",
  "version": "1.3.4",
  "manifest_version": 2,
  "icons": {
    "16": "icon/icon16.png",
    "32": "icon/icon32.png",
    "48": "icon/icon48.png",
    "96": "icon/icon96.png",
    "128": "icon/icon128.png"
  },
  "browser_action": {
    "default_popup": "src/popup.html"
  },
  "permissions": [
    "tabs",
    "storage",
    "scripting"
  ],
  "host_permissions": [
    "http://*/*",
    "https://*/*"
  ],
  "commands": {
    "add-note-from-selection": {
      "suggested_key": {
        "default": "Alt+Shift+A",
        "mac": "Alt+Shift+A"
      },
      "description": "Add note from selection"
    },
    "add-note-from-clipboard": {
      "suggested_key": {
        "default": "Alt+Shift+V",
        "mac": "Alt+Shift+V"
      },
      "description": "Add note from clipboard"
    },
    "_execute_action": {
      "suggested_key": {
        "default": "Alt+A"
      }
    }
  },
  "background": {
    "scripts": [
      "src/background.js"
    ]
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "notes-by-url@prestalife.net",
      "strict_min_version": "58.0"
    }
  },
  "options_page": "src/options.html"
}