Examine source code of Selenium IDE

{
  "name": "Selenium IDE",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "A3B79DAF-C9AB-4CE3-90C9-0E2E46CF3A11.jpeg"
    },
    "colors": {
      "frame": "rgba(94, 46, 191, 1)",
      "tab_background_text": "rgba(204, 51, 51, 1)",
      "toolbar": "rgba(235, 70, 70, 1)",
      "bookmark_text": "rgba(224, 16, 16, 1)",
      "toolbar_field": "rgba(194, 50, 50, 1)",
      "toolbar_field_text": "rgba(196, 45, 45, 1)"
    }
  }
}