Examine source code of Letny otdyh

{
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "#69f0f0",
      "tab_background_text": "#150b7d"
    }
  },
  "version": "2.0",
  "name": "Letny otdyh",
  "manifest_version": 2,
  "description": "Momenty na prirode"
}