Examine source code of red promo

{
  "theme": {
    "images": {
      "theme_frame": "RED_one.jpg"
    },
    "colors": {
      "frame": "#ff1212",
      "tab_background_text": "#faf87f"
    }
  },
  "version": "2.0",
  "name": "red promo",
  "manifest_version": 2,
  "description": "in red"
}