Examine source code of Algebraic Expression

{
  "manifest_version": 2,
  "name": "Algebraic Expression Calculator",
  "version": "1.0",
  "description": "Solve and simplify algebraic expressions instantly.",
  "icons": {
    "48": "icons/algebra-calculator-icon-48.png"
  },
  "permissions": [],
  "browser_action": {
    "default_icon": "icons/algebra-calculator-icon-48.png",
    "default_popup": "popup.html",
    "default_title": "Algebra Calculator"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{0138ebcd-a5d9-47cb-ab53-f501ea5ede33}"
    }
  }
}