Examine source code of Plastic Red

{
  "theme": {
    "images": {
      "theme_frame": "PlasticRed.jpg"
    },
    "colors": {
      "frame": "#1474db",
      "tab_background_text": "#34f1f7"
    }
  },
  "version": "2.0",
  "name": "Plastic Red",
  "manifest_version": 2,
  "description": "Basic plastic rendering."
}