Examine source code of Autumn Mornings Light

{
  "name": "Autumn Mornings Light",
  "manifest_version": 2,
  "version": "4.0",
  "theme": {
    "images": {
      "theme_frame": "AutumnMorningLightH.jpg"
    },
    "colors": {
      "frame": "rgba(145, 59, 22, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(145, 61, 22, 0)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(145, 61, 22, 0.07)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)",
      "tab_line": "rgba(255, 255, 255, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{4ff8fbe4-6f15-422e-8a98-72b055d62365}"
    }
  }
}