Examine source code of nicos theme

{
  "name": "nicos theme",
  "manifest_version": 2,
  "version": "1.0",
  "theme": {
    "images": {
      "theme_frame": "dark grey.jpg"
    },
    "colors": {
      "frame": "rgba(82, 82, 82, 1)",
      "tab_background_text": "rgba(224, 159, 169, 1)",
      "toolbar": "rgba(224, 156, 167, 0.31)",
      "bookmark_text": "rgba(224, 159, 169, 1)",
      "toolbar_field": "rgba(224, 156, 167, 1)"
    }
  }
}