zotero/scss/components/_collection-tree.scss

$icons: (
	collection, duplicates, feed, feed-error, feed-library, feed-updating, groups, library,
	library-group, publications, trash-full, trash, unfiled, retracted, search,
);

#zotero-collections-tree-container {
	height: 5.2em;
}

#zotero-collections-tree {
	width: 100%;

	.virtualized-table {
		overflow-y: auto;
		flex: 1 0;
		text-overflow: ellipsis;

		.row {
			.icon-css:not(.twisty) {
				width: 16px;
				height: 16px;
			}
	
			@each $icon in $icons {
				.icon-css.#{$icon} {
					@include focus-states using ($color) {
						@include svgicon($icon, $color, "16", "collection-tree");
					}
				}
			}
		}
	}

	.virtualized-table-body {
		padding: 0 8px;
	}

	.cell.primary {
		display: flex;
		align-items: center;

		:not(.cell-text) {
			flex-shrink: 0
		}

		.cell-text {
			flex-shrink: 1;
			text-overflow: ellipsis;
			overflow: hidden;
			margin-left: 6px;
		}

		input.cell-text {
			border: 1px highlight solid;
			padding: 1px 2px;
			margin-right: 5px;
			width: 100%;
			font-size: inherit;
			pointer-events: auto;
		}

		.cell-icon {
			min-width: 16px;
		}
	}
}