Examine source code of Blackspider

{
  "theme": {
    "images": {
      "theme_frame": "sp3.JPG"
    },
    "colors": {
      "frame": "#261717",
      "tab_background_text": "#ccc2c2"
    }
  },
  "version": "2.0",
  "name": "Blackspider",
  "manifest_version": 2,
  "description": "black spiderman"
}