Examine source code of Binary Calculator Basic

{
  "manifest_version": 2,
  "name": "Binary Calculator Basic",
  "version": "1.0",
  "description": "Binary Calculator performs arithmetic operations on binary numbers. Binary Calculator has a buffer limit of 8 bits. If the result of the arithmetic operation exceeds 8 bits then the extraneous bits are truncated",
  "permissions": [],
  "browser_action": {
    "default_popup": "game.html",
    "default_icon": {
      "128": "images/bina-logo.png"
    }
  },
  "icons": {
    "128": "images/bina-logo.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{f785c72b-06a9-4290-9f6e-2da982c91121}"
    }
  }
}