Examine source code of MD Syntax

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  "name": "MD Syntax",
  "version": "1.1.2",
  "description": "Searchable Markdown reference card with copy support",
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    "default_icon": {
      "16": "res/16.png",
      "48": "res/48.png"
    }
  },
  "background": {
    "scripts": [
      "scripts/main.js"
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