Examine source code of Grunge Diamonds

{
  "theme": {
    "images": {
      "theme_frame": "11111111111111111111111111111111111111111.jpg"
    },
    "colors": {
      "frame": "#a600ff",
      "tab_background_text": "#e5e1e8"
    }
  },
  "version": "2.0",
  "name": "Grunge Diamonds",
  "manifest_version": 2,
  "description": "Purple grunge and diamonds!"
}