Fix: Highlight current selection in HC theme (fixes #69077)

src/vs/workbench/browser/parts/quickinput/quickInputList.ts

@@ -22,7 +22,7 @@ import { HighlightedLabel } from 'vs/base/browser/ui/highlightedlabel/highlighte
 import { memoize } from 'vs/base/common/decorators';
 import { range } from 'vs/base/common/arrays';
 import * as platform from 'vs/base/common/platform';
-import { listFocusBackground, pickerGroupBorder, pickerGroupForeground } from 'vs/platform/theme/common/colorRegistry';
+import { listFocusBackground, pickerGroupBorder, pickerGroupForeground, activeContrastBorder } from 'vs/platform/theme/common/colorRegistry';
 import { registerThemingParticipant } from 'vs/platform/theme/common/themeService';
 import { ActionBar } from 'vs/base/browser/ui/actionbar/actionbar';
 import { Action } from 'vs/base/common/actions';
@@ -596,6 +596,13 @@ registerThemingParticipant((theme, collector) => {
 		collector.addRule(`.quick-input-list .monaco-list .monaco-list-row.focused { background-color:  ${listInactiveFocusBackground}; }`);
 		collector.addRule(`.quick-input-list .monaco-list .monaco-list-row.focused:hover { background-color:  ${listInactiveFocusBackground}; }`);
 	}
+	const activeContrast = theme.getColor(activeContrastBorder);
+	if (activeContrast) {
+		collector.addRule(`.quick-input-list .monaco-list .monaco-list-row.focused { border: 1px dotted ${activeContrast}; }`);
+		collector.addRule(`.quick-input-list .monaco-list .monaco-list-row { border: 1px solid transparent; }`);
+		collector.addRule(`.quick-input-list .monaco-list .quick-input-list-entry { padding: 0 5px; height: 18px; align-items: center; }`);
+		collector.addRule(`.quick-input-list .monaco-list .quick-input-list-entry-action-bar { margin-top: 0; }`);
+	}
 	const pickerGroupBorderColor = theme.getColor(pickerGroupBorder);
 	if (pickerGroupBorderColor) {
 		collector.addRule(`.quick-input-list .quick-input-list-entry { border-top-color:  ${pickerGroupBorderColor}; }`);