This article explains how to replace the native search bar in the Electro theme by MadrasThemes.
FiboSearch plugin (since version 1.12.x) has built-in integration with this theme. It means you can replace the default search bar by selecting a single checkbox. If version v1.12.x isn’t publically yet, contact our support team. We will send you the beta version.
If you have activated Electro theme or child-theme of them, you should see the following screen in the plugin settings:
WooCommerce -> FiboSearch -> Starting (tab)
Select the option “Replace all Electro search bars with the FiboSearch.” and the search bar should be replaced.