Examine source code of zifiridark

{
  "manifest_version": 2,
  "version": "1.5",
  "name": "zifiridark",
  "author": "wete",
  "theme": {
    "properties": {
      "color_scheme": "dark",
      "toolbar_field_icon_opacity": "1"
    },
    "colors": {
      "toolbar": "rgb(0, 0, 0)",
      "toolbar_text": "rgba(255, 255, 255, 0.4)",
      "frame": "rgb(0, 0, 0)",
      "tab_background_text": "rgb(127, 127, 127)",
      "toolbar_field": "rgb(0, 0, 0)",
      "toolbar_field_text": "rgba(255, 255, 255, 0.8)",
      "tab_line": "rgba(255, 255, 255, 0)",
      "popup": "rgba(0, 0, 0, 0.6)",
      "popup_text": "rgba(255, 255, 255, 0.5)",
      "button_background_active": "rgba(255, 255, 255, 0.1)",
      "button_background_hover": "rgba(255, 255, 255, 0.05)",
      "frame_inactive": "rgb(0, 0, 0)",
      "icons_attention": "rgba(255, 255, 255, 0.5)",
      "icons": "rgba(255, 255, 255, 0.25)",
      "ntp_background": "rgb(0, 0, 0)",
      "ntp_text": "rgba(255, 255, 255, 0)",
      "popup_border": "rgba(0, 0, 0, 0)",
      "popup_highlight_text": "rgba(255, 255, 255, 0.5)",
      "popup_highlight": "rgb(0, 0, 0)",
      "sidebar_border": "rgba(0, 0, 0, 0)",
      "sidebar_highlight_text": "rgba(0, 0, 0, 0)",
      "sidebar_highlight": "rgba(0, 0, 0, 0)",
      "sidebar_text": "rgba(255, 255, 255, 0.5)",
      "sidebar": "rgb(0, 0, 0)",
      "tab_background_separator": "rgba(0, 0, 0, 0)",
      "tab_loading": "rgb(0, 0, 0)",
      "tab_selected": "rgba(0, 0, 0, 0)",
      "tab_text": "rgb(255, 255, 255)",
      "toolbar_bottom_separator": "rgba(0, 0, 0, 0)",
      "toolbar_field_border_focus": "rgba(255, 255, 255, 0)",
      "toolbar_field_border": "rgba(0, 0, 0, 0)",
      "toolbar_field_focus": "rgba(0, 0, 0, 0)",
      "toolbar_field_highlight_text": "rgb(0, 0, 0)",
      "toolbar_field_highlight": "rgb(127, 127, 127)",
      "toolbar_field_separator": "rgb(0, 0, 0)",
      "toolbar_field_text_focus": "rgb(0, 0, 0)",
      "toolbar_top_separator": "rgb(15, 15, 15)",
      "toolbar_vertical_separator": "rgba(0, 0, 0, 0)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{9e190fb7-242c-46e8-8c50-9c0ad5112f2c}"
    }
  }
}