Examine source code of Periodic Table Basic

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  "name": "Periodic Table Basic",
  "version": "1.0",
  "description": "The Periodic Table is a tabular arrangement of chemical elements, where they are organized by their atomic number, electron configuration, and recurring chemical properties. It provides a systematic way to understand and study the vast array of elements and their interactions.",
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    "default_icon": {
      "128": "images/peri-logo.png"
    }
  },
  "icons": {
    "128": "images/peri-logo.png"
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{bafe1402-2eaa-4512-9e78-f88b429eaab5}"
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