Examine source code of Two-color orange

{
  "name": "Two-color orange",
  "manifest_version": 2,
  "version": "2.0",
  "theme": {
    "images": {
      "theme_frame": "Untitled2.png"
    },
    "colors": {
      "toolbar": "rgba(255, 145, 0, 1)",
      "toolbar_field": "rgba(255, 145, 0, 1)",
      "toolbar_field_text": "rgba(57, 55, 92, 1)",
      "frame": "rgba(229, 230, 232, 1)",
      "tab_background_text": "rgba(57, 55, 92, 1)",
      "bookmark_text": "rgba(57, 55, 92, 1)"
    }
  }
}