Examine source code of Spring aethetic

{
  "name": "DARIA",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": ".‌.jpg"
    },
    "colors": {
      "frame": "rgba(255, 255, 255, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)",
      "toolbar": "rgba(88, 99, 70, 0.71)",
      "bookmark_text": "rgba(10, 10, 10, 1)",
      "toolbar_field": "rgba(196, 196, 196, 1)",
      "toolbar_field_text": "rgba(0, 0, 0, 1)",
      "tab_line": "rgba(0, 0, 0, 0.82)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{3e5c4470-3c46-4877-b304-4e111b1d2aab}"
    }
  }
}