Examine source code of Fox-y Dark

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "Fox-y Dark",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(25, 25, 25)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(7, 7, 7)",
      "tab_background_text": "rgb(206, 206, 206)",
      "toolbar_field": "rgb(34, 34, 34)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(76, 62, 140)",
      "popup": "rgb(25, 25, 25)",
      "popup_text": "rgb(255, 255, 255)",
      "ntp_background": "rgb(7, 7, 7)",
      "ntp_text": "rgb(255, 255, 255)",
      "toolbar_bottom_separator": "rgba(56, 76, 98, 0)",
      "toolbar_field_border": "rgba(56, 56, 85, 0.51)",
      "toolbar_field_separator": "rgba(255, 255, 255, 0.11)",
      "toolbar_vertical_separator": "rgba(56, 76, 98, 0)",
      "tab_loading": "rgb(76, 62, 140)"
    }
  }
}