Examine source code of NB Stripes

{
  "name": "NB Stripes",
  "manifest_version": 2,
  "version": "3.0",
  "theme": {
    "images": {
      "theme_frame": "nb deal2xsmol.jpg"
    },
    "colors": {
      "frame": "rgba(229, 230, 232, 1)",
      "tab_background_text": "rgba(241, 212, 255, 1)",
      "toolbar": "rgba(136, 85, 212, 0.2)",
      "toolbar_field": "rgba(111, 66, 166, 0.43)",
      "toolbar_field_text": "rgba(255, 255, 255, 1)",
      "tab_line": "rgba(171, 107, 194, 0.89)"
    }
  }
}