You can enable/disable admin bar, header search, sticky header, and fallback image.

• Go to Appearance > Customize > General Settings > Misc Settings
• Enable or Disable Admin Bar.
• Enable Header Search if you want to show search form on the header.
• Enable Sticky Header if you want to make your navigation menu sticky. The navigation menu will float with the content if you enable sticky header.
• Enable or Disable the option of showing a fallback image.
• Enable or Disable showing a “Scroll to Top” button on the bottom of the page. If enabled, you can select from a wide range of icons for the button by visiting Font Awesome.
• Click Publish.