Examine source code of Allways Spring

{
  "name": "Allways Spring",
  "manifest_version": 2,
  "version": "4.0",
  "theme": {
    "images": {
      "theme_frame": "AlwaysSpringH2Custom.jpg"
    },
    "colors": {
      "frame": "rgba(196, 129, 129, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "toolbar": "rgba(196, 128, 128, 0)",
      "bookmark_text": "rgba(255, 255, 255, 1)",
      "toolbar_field": "rgba(196, 128, 128, 0.05)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)",
      "tab_line": "rgba(255, 255, 255, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{c1dc320d-3351-4b11-9cb6-f24e252db998}"
    }
  }
}