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,
);

@each $icon in $icons {
	.icon-css.icon-#{$icon} {
		@include focus-states using ($color) {
			@include svgicon($icon, $color, "16", "collection-tree");
		}
	}
}

#zotero-collections-pane {
	min-width: $min-width-collections-pane;
	width: $min-width-collections-pane;
	flex-shrink: 0;
	background: var(--material-sidepane);
}

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

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

	#main-window & {
		// virtualized-table has a default background (--material-background)
		// which is what we want in most places, including dialogs that include
		// #zotero-collections-tree, however main window collection tree is an
		// exception
		background: transparent;
	}

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

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

	.virtualized-table-body {
		padding: 0 8px 8px;
		scrollbar-color: var(--color-scrollbar) var(--color-scrollbar-background);
	}

	.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: 4px;
		}

		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;
		}
	}
}