Examine source code of Nanuch2

{
  "theme": {
    "images": {
      "theme_frame": "vektorfinalcompressedre.jpg"
    },
    "colors": {
      "frame": "#727d29",
      "tab_background_text": "#b6c749"
    }
  },
  "version": "2.0",
  "name": "Nanuch2",
  "manifest_version": 2,
  "description": "Nanuc i ta twoja obsesja...;p"
}