Show advanced search fields by default

functions.php

<?php

/**
 * Show advanced search fields by default
 */
add_filter( 'wpsight_get_advanced_search_fields', 'custom_get_advanced_search_fields', 11 );

function custom_get_advanced_search_fields( $fields ) {
	
	$fields_advanced['min']['advanced']		= false;
	$fields_advanced['max']['advanced']		= false;
	$fields_advanced['orderby']['advanced']		= false;
	$fields_advanced['order']['advanced']		= false;
	$fields_advanced['feature']['advanced']		= false;
	
	return $fields;
	
}

style.css

/* Hide Advanced Search Button */
.listings-search-advanced-toggle {
    display: none
}

Hi,
May I suggest a couple corrections.
replace $fields_advanced with $fields
and for the css to work it has to be more 'specific' to override de default style

/* Hide Advanced Search Button */
.wpsight-listings-search .listings-search-advanced-toggle {
  display: none
}

Thanks @cantoute if it was for the wp guys we would never get this working.