diff --git a/src/vs/editor/contrib/stickyScroll/browser/stickyScroll.css b/src/vs/editor/contrib/stickyScroll/browser/stickyScroll.css
index e030b549b25..4af17f5580c 100644
--- a/src/vs/editor/contrib/stickyScroll/browser/stickyScroll.css
+++ b/src/vs/editor/contrib/stickyScroll/browser/stickyScroll.css
@@ -22,6 +22,14 @@
 	width : 100%;
 }
 
+.monaco-editor .sticky-line-root-high-contrast-dark {
+	border-bottom: 1px solid white;
+}
+
+.monaco-editor .sticky-line-root-high-contrast-light {
+	border-bottom: 1px solid black;
+}
+
 .monaco-editor .sticky-line-root:hover {
 	background-color: var(--vscode-editorStickyScrollHover-background);
 	cursor : pointer;
diff --git a/src/vs/editor/contrib/stickyScroll/browser/stickyScrollController.ts b/src/vs/editor/contrib/stickyScroll/browser/stickyScrollController.ts
index 26ff4c2c6ce..2a250b47b20 100644
--- a/src/vs/editor/contrib/stickyScroll/browser/stickyScrollController.ts
+++ b/src/vs/editor/contrib/stickyScroll/browser/stickyScrollController.ts
@@ -15,6 +15,7 @@ import { IInstantiationService } from 'vs/platform/instantiation/common/instanti
 import * as dom from 'vs/base/browser/dom';
 import { IContextMenuService } from 'vs/platform/contextview/browser/contextView';
 import { MenuId } from 'vs/platform/actions/common/actions';
+// import { IThemeService } from 'vs/platform/theme/common/themeService';
 
 export class StickyScrollController extends Disposable implements IEditorContribution {
 
@@ -32,10 +33,11 @@ export class StickyScrollController extends Disposable implements IEditorContrib
 		@IContextMenuService private readonly _contextMenuService: IContextMenuService,
 		@ILanguageFeaturesService languageFeaturesService: ILanguageFeaturesService,
 		@IInstantiationService instaService: IInstantiationService,
+		// @IThemeService themeService: IThemeService
 	) {
 		super();
 
-		this._stickyScrollWidget = new StickyScrollWidget(this._editor, languageFeaturesService, instaService);
+		this._stickyScrollWidget = new StickyScrollWidget(this._editor, languageFeaturesService, instaService); // themeService);
 		this._stickyLineCandidateProvider = new StickyLineCandidateProvider(this._editor, languageFeaturesService);
 		this._widgetState = new StickyScrollWidgetState([], 0);
 
diff --git a/src/vs/editor/contrib/stickyScroll/browser/stickyScrollWidget.ts b/src/vs/editor/contrib/stickyScroll/browser/stickyScrollWidget.ts
index 063f5f84b78..caaddd7bd38 100644
--- a/src/vs/editor/contrib/stickyScroll/browser/stickyScrollWidget.ts
+++ b/src/vs/editor/contrib/stickyScroll/browser/stickyScrollWidget.ts
@@ -20,6 +20,7 @@ import { IRange, Range } from 'vs/editor/common/core/range';
 import { StandardMouseEvent } from 'vs/base/browser/mouseEvent';
 import 'vs/css!./stickyScroll';
 import { EmbeddedCodeEditorWidget } from 'vs/editor/browser/widget/embeddedCodeEditorWidget';
+// import { IThemeService } from 'vs/platform/theme/common/themeService';
 
 interface CustomMouseEvent {
 	detail: string;
@@ -51,7 +52,8 @@ export class StickyScrollWidget extends Disposable implements IOverlayWidget {
 	constructor(
 		private readonly _editor: ICodeEditor,
 		@ILanguageFeaturesService private readonly _languageFeatureService: ILanguageFeaturesService,
-		@IInstantiationService private readonly _instaService: IInstantiationService
+		@IInstantiationService private readonly _instaService: IInstantiationService,
+		// @IThemeService private readonly _themeService: IThemeService
 	) {
 		super();
 		this._layoutInfo = this._editor.getLayoutInfo();
@@ -249,6 +251,7 @@ export class StickyScrollWidget extends Disposable implements IOverlayWidget {
 		child.appendChild(lineHTMLNode);
 
 		child.className = 'sticky-line-root';
+		// console.log('this._themeService.getColorTheme() : ', this._themeService.getColorTheme());
 		child.style.lineHeight = `${lineHeight}px`;
 		child.style.width = `${width}px`;
 		child.style.height = `${lineHeight}px`;