Examine source code of Softly Fallen Leaves

{
  "name": "Softly Fallen Leaves",
  "manifest_version": 2,
  "version": "6.0",
  "theme": {
    "images": {
      "theme_frame": "header.png"
    },
    "colors": {
      "frame": "rgba(224, 235, 202, 1)",
      "tab_background_text": "rgba(0, 0, 0, 0.97)",
      "toolbar": "rgba(223, 235, 200, 0)",
      "bookmark_text": "rgba(0, 0, 0, 1)",
      "toolbar_field": "rgba(223, 235, 200, 0.06)",
      "toolbar_field_text": "rgba(0, 0, 0, 1)",
      "tab_line": "rgba(0, 0, 0, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{e2e20577-7403-44cd-802a-293f0e74fe48}"
    }
  }
}