Examine source code of Gray wallpaper

{
  "name": "кубове",
  "manifest_version": 2,
  "version": "1.1resigned1",
  "theme": {
    "images": {
      "theme_frame": "кубове.jpg"
    },
    "colors": {
      "frame": "rgba(229, 230, 232, 1)",
      "tab_background_text": "rgba(87, 87, 87, 1)",
      "toolbar": "rgba(87, 87, 87, 0.14)",
      "bookmark_text": "rgba(87, 87, 87, 1)",
      "toolbar_field": "rgba(138, 136, 136, 0.24)",
      "toolbar_field_text": "rgba(5, 5, 5, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{464ca4b7-794c-4a83-9069-e33d1340b0c0}"
    }
  }
}