Examine source code of Oker-sivo

{
  "name": "Oker-sivo",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "Proba2.jpg"
    },
    "colors": {
      "toolbar": "rgba(250, 250, 250, 1)",
      "toolbar_field": "rgba(247, 247, 232, 1)",
      "frame": "rgba(255, 255, 255, 1)",
      "tab_background_text": "rgba(71, 1, 1, 1)",
      "bookmark_text": "rgba(59, 0, 0, 1)"
    }
  }
}