Examine source code of Springs Spring

{
  "name": "Springs Spring",
  "manifest_version": 2,
  "version": "5.0",
  "theme": {
    "images": {
      "theme_frame": "springHcopy.jpg"
    },
    "colors": {
      "frame": "rgba(194, 230, 179, 1)",
      "tab_background_text": "rgba(0, 0, 0, 1)",
      "toolbar": "rgba(0, 0, 0, 0)",
      "bookmark_text": "rgba(0, 0, 0, 1)",
      "toolbar_field": "rgba(192, 230, 177, 0.08)",
      "toolbar_field_text": "rgba(0, 0, 0, 1)",
      "tab_line": "rgba(0, 0, 0, 1)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{71827b5c-7015-4033-9564-d7fcde1873de}"
    }
  }
}