Examine source code of japan-003

{
  "name": "japan-003",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "japan-003.jpg"
    },
    "colors": {
      "frame": "rgba(226, 229, 235, 1)",
      "tab_background_text": "rgba(143, 143, 143, 1)",
      "toolbar": "rgba(227, 127, 73, 0.55)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(36, 36, 36, 0.58)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)",
      "tab_line": "rgba(112, 0, 0, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{dc987575-432f-4015-bb45-69cd10a95cb4}"
    }
  }
}