the facets of WPSOLR showing as: attribute (count) should rather be attribute <span class=wpsolr_facet_count>(count)</span> —— this would allow further styling of product counts via css
You can override the facet item template in screen 2.6. Replace the template “Facets list element name with #results” default value: %s (%d) with %s <span class="my-class-name">(%d)</span>