Examine source code of Cybernetic Black

{
  "manifest_version": 2,
  "version": "1.0",
  "name": "dark_2",
  "theme": {
    "images": {},
    "properties": {},
    "colors": {
      "toolbar": "rgb(6, 6, 6)",
      "toolbar_text": "rgb(255, 255, 255)",
      "frame": "rgb(6, 6, 6)",
      "tab_background_text": "rgb(255, 255, 255)",
      "toolbar_field": "rgb(16, 20, 28)",
      "toolbar_field_text": "rgb(255, 255, 255)",
      "tab_line": "rgb(6, 6, 6)",
      "popup": "rgb(6, 6, 6)",
      "popup_text": "rgb(255, 255, 255)",
      "button_background_active": "rgb(0, 0, 0)",
      "frame_inactive": "rgb(0, 0, 0)",
      "icons_attention": "rgb(27, 217, 53)",
      "icons": "rgb(255, 255, 255)",
      "ntp_background": "rgb(6, 6, 6)",
      "ntp_text": "rgb(27, 217, 53)",
      "popup_border": "rgba(255, 255, 255, 0.1)",
      "popup_highlight_text": "rgb(255, 255, 255)",
      "popup_highlight": "rgba(27, 217, 53, 0.5)",
      "sidebar_border": "rgba(9, 82, 19, 0.4)",
      "sidebar_text": "rgb(255, 255, 255)",
      "sidebar": "rgb(6, 6, 6)",
      "tab_loading": "rgb(6, 6, 6)",
      "toolbar_field_border_focus": "rgba(27, 217, 53, 0.3)",
      "toolbar_field_highlight": "rgba(27, 217, 53, 0.3)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{34a189ba-6767-43dc-adf5-f0ccdb91d3e2}"
    }
  }
}