diff --git a/scss/components/_item-tree.scss b/scss/components/_item-tree.scss
index 368eed215c..50113126c0 100644
--- a/scss/components/_item-tree.scss
+++ b/scss/components/_item-tree.scss
@@ -35,14 +35,6 @@
 		padding-inline-start: 8px;
 		padding-inline-end: calc(8px + var(--scrollbar-width, 0px));
 		box-sizing: border-box;
-		// A clear divider below the column headers (the default faint border is lost
-		// against the white section-header/spacer rows below it). The header already
-		// carries a second 1px line via ::after, so drop that one to avoid doubling.
-		border-bottom: var(--material-panedivider);
-
-		&::after {
-			border-bottom: none;
-		}
 
 		.cell.hasAttachment,
 		.cell.numNotes {
diff --git a/scss/components/_virtualized-table.scss b/scss/components/_virtualized-table.scss
index 17b4cf0800..b7446363a3 100644
--- a/scss/components/_virtualized-table.scss
+++ b/scss/components/_virtualized-table.scss
@@ -237,7 +237,7 @@
 	background: var(--material-background);
 	height: 1.83333333em; // 22px @ 12px font size
 	overflow: hidden;
-	border-bottom: 1px solid var(--material-border-quarternary);
+	border-bottom: var(--material-panedivider);
 	padding-inline: 8px;
 	box-sizing: border-box;
 	padding-inline-end: calc(8px + var(--scrollbar-width, 0px));
@@ -259,23 +259,6 @@
 		}
 	}
 
-	&::after {
-		content: "";
-		display: block;
-		border-bottom: var(--material-border-quarternary);
-		height: 1px;
-		width: 100%;
-		position: absolute;
-		top: calc(1.83333333em - 1px);
-		left: 0;
-		right: 0;
-		z-index: 1;
-
-		@include comfortable {
-			top: calc(2.33333333em - 1px);
-		}
-	}
-
 	.column-picker {
 		text-align: center;
 	}