Examine source code of Darker Cyan

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Night Sky",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(14, 14, 14)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(14, 14, 14)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(40, 40, 40)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(13, 158, 130)",
      "popup": "rgb(40, 40, 40)",
      "popup_text": "rgb(255, 255, 255)",
      "frame_inactive": "rgb(22, 22, 22)",
      "ntp_background": "rgb(14, 14, 14)",
      "tab_loading": "rgb(13, 158, 130)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{9876bc08-9812-46ae-8671-d69c6cbd50fe}"
    }
  }
}