prmTreeNav.css
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			prm-databases-categorize button.is-selected{
			color: red !important;
			}
			prm-databases-categorize button:hover{
			background-color: #aaa !important;
			color: inherit !important;
			}
			prm-databases-categorize button.is-selected:hover{
			color: red !important;
			}
			prm-tree-nav md-list md-list-item::after{
			opacity: 1 !important;
			}
			prm-tree-nav md-list md-list-item::after{
			opacity: .3 !important;
			}
			prm-databases-categorize h2,
			prm-databases-categorize prm-tree-nav{
			width: 220px;
			max-width: 220px;
			}

			@media only screen and (max-width: 1100px){
			prm-databases-categorize h2,
			prm-databases-categorize prm-tree-nav{
			width: 180px !important;
			max-width: 180px !important;
			}
			}

Primo3/primo-explore/custom/src/css/prmTreeNav.cssf8153198bd4dtestsprint