Examine source code of Czo Gruvbox 64 Theme

{
  "manifest_version": 2,
  "name": "Czo Gruvbox64 Theme",
  "version": "1.61",
  "theme": {
    "colors": {
      "button_background_active": "#665c54",
      "button_background_hover": "#504945",
      "frame_inactive": "#282828",
      "frame": "#282828",
      "icons_attention": "#689d6a",
      "icons": "#c9b788",
      "ntp_background": "#282828",
      "ntp_text": "#fbf1c7",
      "popup_border": "#665c54",
      "popup_highlight_text": "#282828",
      "popup_highlight": "#689d6a",
      "popup_text": "#c9b788",
      "popup": "#282828",
      "sidebar_border": "#282828",
      "sidebar_highlight_text": "#282828",
      "sidebar_highlight": "#689d6a",
      "sidebar_text": "#fbf1c7",
      "sidebar": "#3c3836",
      "tab_background_separator": "#c9b788",
      "tab_background_text": "#7c6f64",
      "tab_line": "#282828",
      "tab_loading": "#689d6a",
      "tab_selected": "#3c3836",
      "tab_text": "#c9b788",
      "toolbar_bottom_separator": "#282828",
      "toolbar_field_border_focus": "#689d6a",
      "toolbar_field_border": "#282828",
      "toolbar_field_focus": "#282828",
      "toolbar_field_highlight_text": "#fbf1c7",
      "toolbar_field_highlight": "#689d6a",
      "toolbar_field_text_focus": "#fbf1c7",
      "toolbar_field_text": "#c9b788",
      "toolbar_field": "#282828",
      "toolbar_text": "#fbf1c7",
      "toolbar_top_separator": "#3c3836",
      "toolbar_vertical_separator": "#fbf1c7",
      "toolbar": "#3c3836"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{8b85d219-25fe-44dd-89b7-be3935a77c7b}"
    }
  }
}