diff --git a/src/vs/workbench/contrib/testing/browser/media/testing.css b/src/vs/workbench/contrib/testing/browser/media/testing.css
index cafaaac4dd7..2ebd1fc35bc 100644
--- a/src/vs/workbench/contrib/testing/browser/media/testing.css
+++ b/src/vs/workbench/contrib/testing/browser/media/testing.css
@@ -414,7 +414,6 @@
 .monaco-workbench .test-error-content-widget .inner {
 	margin-left: 20px;
 	color: var(--vscode-testing-message-error-badgeForeground) !important;
-	background: var(--vscode-testing-message-error-badgeBackground);
 	border-top-right-radius: 2px;
 	border-bottom-right-radius: 2px;
 	padding-right: 3px;
@@ -452,7 +451,6 @@
 		top: -1px;
 		width: 15px;
 		left: -10px;
-		fill: var(--vscode-testing-message-error-badgeBackground);
 		z-index: -1;
 		stroke-width: 0.71px; /* 1 / sqrt(2) */
 		stroke: var(--vscode-testing-message-error-badgeBorder);
diff --git a/src/vs/workbench/contrib/testing/browser/theme.ts b/src/vs/workbench/contrib/testing/browser/theme.ts
index 439e1f765fa..b41f5828a97 100644
--- a/src/vs/workbench/contrib/testing/browser/theme.ts
+++ b/src/vs/workbench/contrib/testing/browser/theme.ts
@@ -183,7 +183,6 @@ export const testStatesToRetiredIconColors: { [K in TestResultState]?: string }
 registerThemingParticipant((theme, collector) => {
 
 	const editorBg = theme.getColor(editorBackground);
-	const missBadgeBackground = editorBg && theme.getColor(testingUncoveredBackground)?.transparent(2).makeOpaque(editorBg);
 
 	collector.addRule(`
 	.coverage-deco-inline.coverage-deco-hit.coverage-deco-hovered {
@@ -194,9 +193,22 @@ registerThemingParticipant((theme, collector) => {
 		background: ${theme.getColor(testingUncoveredBackground)?.transparent(1.3)};
 		outline-color: ${theme.getColor(testingUncoveredBorder)?.transparent(2)};
 	}
-	.coverage-deco-branch-miss-indicator::before {
-		border-color: ${missBadgeBackground?.transparent(1.3)};
-		background-color: ${missBadgeBackground};
+		`);
+
+	if (editorBg) {
+		const missBadgeBackground = theme.getColor(testingUncoveredBackground)?.transparent(2).makeOpaque(editorBg);
+		const errorBadgeBackground = theme.getColor(messageBadgeBackground)?.makeOpaque(editorBg);
+		collector.addRule(`
+			.coverage-deco-branch-miss-indicator::before {
+				border-color: ${missBadgeBackground?.transparent(1.3)};
+				background-color: ${missBadgeBackground};
+			}
+			.monaco-workbench .test-error-content-widget .inner{
+				background: ${errorBadgeBackground};
+			}
+			.monaco-workbench .test-error-content-widget .inner .arrow svg {
+				fill: ${errorBadgeBackground};
+			}
+		`);
 	}
-	`);
 });