Examine source code of silver splatter

{
  "theme": {
    "images": {
      "theme_frame": "X-KH-gimplogofirefox.7.0.jpg"
    },
    "colors": {
      "frame": "#bababa",
      "tab_background_text": "#ababab"
    }
  },
  "version": "2.0",
  "name": "silver splatter",
  "manifest_version": 2,
  "description": "....quecksilber"
}