Examine source code of NDRD

{
  "name": "NDRD",
  "manifest_version": 2,
  "version": "3.0",
  "theme": {
    "images": {
      "theme_frame": "Paintwave_3 copy.jpg"
    },
    "colors": {
      "toolbar": "rgba(145, 148, 227, 1)",
      "toolbar_field": "rgba(240, 237, 232, 1)",
      "toolbar_field_text": "rgba(120, 120, 120, 1)",
      "frame": "rgba(152, 147, 245, 1)",
      "tab_background_text": "rgba(255, 255, 255, 1)",
      "bookmark_text": "rgba(63, 65, 66, 0.87)"
    }
  }
}