Examine source code of simple giratina

{
  "theme": {
    "images": {
      "theme_frame": "giratinafirefoxbanner.png"
    },
    "colors": {
      "frame": "#5e0000",
      "tab_background_text": "#212121"
    }
  },
  "version": "2.0",
  "name": "simple giratina",
  "manifest_version": 2,
  "description": "a simple gray giratina theme"
}