Examine source code of firstcard romania

{
  "theme": {
    "images": {
      "theme_frame": "googlefirstcardheader.png"
    },
    "colors": {
      "frame": "#2a12e3",
      "tab_background_text": "#f71313"
    }
  },
  "version": "2.0",
  "name": "firstcard romania",
  "manifest_version": 2,
  "description": "Firstcard Romania"
}