Examine source code of Silver Metal Hole

{
  "theme": {
    "images": {
      "theme_frame": "silver-metal-hole.jpg"
    },
    "colors": {
      "frame": "#969696",
      "tab_background_text": "#262626"
    }
  },
  "version": "2.0",
  "name": "Silver Metal Hole",
  "manifest_version": 2,
  "description": "Brushed aluminum with holes...created in Photoshop."
}