Examine source code of Nature Malaysia

{
  "name": "Природа Малаизия",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "Природа Малаизия.jpg"
    },
    "colors": {
      "frame": "rgba(10, 10, 10, 1)",
      "tab_background_text": "rgba(214, 201, 201, 1)",
      "toolbar": "rgba(61, 59, 59, 0.13)",
      "bookmark_text": "rgba(214, 201, 201, 1)",
      "toolbar_field": "rgba(46, 45, 45, 0.23)",
      "toolbar_field_text": "rgba(214, 201, 201, 1)"
    }
  }
}