Examine source code of Water turtle

{
  "name": "к-ка",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "к-ка.jpg"
    },
    "colors": {
      "toolbar": "rgba(224, 252, 229, 0.17)",
      "toolbar_field": "rgba(221, 252, 227, 0.16)",
      "toolbar_field_text": "rgba(1, 15, 36, 1)",
      "frame": "rgba(255, 255, 255, 1)",
      "tab_background_text": "rgba(1, 15, 36, 1)",
      "bookmark_text": "rgba(1, 15, 36, 1)"
    }
  }
}