Examine source code of Doves and Sparkles

{
  "name": "Doves and Sparkles",
  "manifest_version": 2,
  "version": "3.0",
  "theme": {
    "images": {
      "theme_frame": "DovesandSparkles.jpg"
    },
    "colors": {
      "frame": "rgba(147, 113, 209, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(150, 113, 209, 0)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(150, 113, 209, 0.06)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)",
      "tab_line": "rgba(0, 0, 0, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{c2e36678-1a05-46f3-8fb1-6b4da21ace8f}"
    }
  }
}