Examine source code of Autumn Violin

{
  "name": "Autumn Violin",
  "manifest_version": 2,
  "version": "5.0",
  "theme": {
    "images": {
      "theme_frame": "ViolinAutumnH.jpg"
    },
    "colors": {
      "frame": "rgba(170, 189, 111, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(139, 163, 67, 0)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(176, 194, 120, 0.03)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)",
      "tab_line": "rgba(255, 255, 255, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{3f8d6bf0-abd9-4681-a716-845a64daf6a0}"
    }
  }
}