Examine source code of HELLAS

{
  "theme": {
    "images": {
      "theme_frame": "greekflag12500x249.jpg"
    },
    "colors": {
      "frame": "#2f31c9",
      "tab_background_text": "#070ab0"
    }
  },
  "version": "2.0",
  "name": "HELLAS",
  "manifest_version": 2
}