Examine source code of orange modern

{
  "name": "orange modern",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "abstract-diagonal-vibrant-yellow-orange-background-technology-concept-free-vector.jpeg"
    },
    "colors": {
      "frame": "rgba(255, 170, 0, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(0, 0, 0, 0.22)",
      "bookmark_text": "rgba(0, 0, 0, 1)",
      "toolbar_field": "rgba(255, 191, 0, 1)",
      "toolbar_field_text": "rgba(0, 0, 0, 1)",
      "tab_line": "rgba(255, 121, 3, 0.48)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{0e7dfaa5-5436-46a4-862e-ca870f96c9b6}"
    }
  }
}