Examine source code of Solid Snake in a Box

{
  "theme": {
    "images": {
      "theme_frame": "solid_snake_header.png"
    },
    "colors": {
      "frame": "#f2b90c",
      "tab_background_text": "#ebe2e2"
    }
  },
  "version": "2.0",
  "name": "Solid Snake in a Box",
  "manifest_version": 2
}