Examine source code of Comet photo

{
  "name": "комета",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "комета.jpg"
    },
    "colors": {
      "frame": "rgba(1, 5, 13, 1)",
      "tab_background_text": "rgba(189, 204, 255, 1)",
      "toolbar": "rgba(81, 85, 143, 0.16)",
      "bookmark_text": "rgba(189, 204, 255, 1)",
      "toolbar_field": "rgba(5, 5, 13, 0.37)",
      "toolbar_field_text": "rgba(189, 204, 255, 1)"
    }
  }
}