Examine source code of Fallen Leaf by MaDonna

{
  "name": "Fallen Leaf by MaDonna",
  "manifest_version": 2,
  "version": "5.0",
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "rgba(94, 50, 33, 1)",
      "tab_background_text": "#ffe8a8",
      "toolbar": "rgba(94, 50, 32, 0)",
      "bookmark_text": "rgba(249, 235, 173, 1)",
      "toolbar_field": "rgba(94, 50, 32, 0.08)",
      "toolbar_field_text": "rgba(255, 240, 173, 1)",
      "tab_line": "rgba(255, 240, 173, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{25fd5cbc-03ce-444a-a128-d80678fa0df4}"
    }
  }
}