Examine source code of Modern Hybrid

{
  "manifest_version": 2,
  "version": "2.1resigned1",
  "name": "Modern Darker",
  "theme": {
    "colors": {
      "toolbar": "rgb(245,245,245)",
      "toolbar_field": "white",
      "toolbar_field_text": "#333",
      "toolbar_field_border": "rgb(245,245,245)",
      "toolbar_field_border_focus": "rgb(221,221,221)",
      "toolbar_field_separator": "rgb(221,221,221)",
      "toolbar_top_separator": "rgb(245,245,245)",
      "toolbar_bottom_separator": "rgb(221,221,221)",
      "toolbar_vertical_separator": "#ccc",
      "bookmark_text": "#333",
      "tab_line": "rgb(245,245,245)",
      "tab_loading": "rgb(0,122,255)",
      "tab_background_separator": "rgb(132,135,140)",
      "ntp_background": "rgb(32,34,43)",
      "ntp_text": "#FAFAFA",
      "frame": "rgb(32,34,43)",
      "tab_background_text": "rgb(221,221,221)",
      "icons_attention": "rgb(0,122,255)",
      "button_background_hover": "hsla(0,0%,75%,.25)",
      "button_background_active": "hsla(0,0%,75%,.50)",
      "popup": "rgb(245,245,245)",
      "popup_border": "rgb(233,233,233)",
      "popup_text": "#333",
      "popup_highlight": "rgb(33,150,243)",
      "popup_highlight_text": "white",
      "sidebar": "rgb(245,245,245)",
      "sidebar_border": "rgb(221,221,221)",
      "sidebar_text": "#333",
      "sidebar_highlight": "rgb(233,233,233)",
      "sidebar_highlight_text": "rgb(0,122,255)"
    }
  },
  "browser_specific_settings": {
    "gecko": {
      "id": "{71eccefd-bc6f-4045-97e1-12bca11abfe2}"
    }
  }
}