Examine source code of periodic system

By: Coheed

Inspect and view changes in periodic system source codes across current and past versions

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manifest.json

{
  "theme": {
    "images": {
      "theme_frame": "header_westmeier.jpg"
    },
    "colors": {
      "frame": "#d20000",
      "tab_background_text": "#ffffff"
    }
  },
  "version": "2.0",
  "name": "periodic system",
  "manifest_version": 2,
  "description": "a red yellow theme with the periodic system of the elements behind"
}

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