src/vs/workbench/browser/parts/editor/tabsTitleControl.ts/TabsTitleControl/redraw
class TabsTitleControl:	private redraw(options?: ITabsTitleControlLayoutOptions): void {

		// Border below tabs if any with explicit high contrast support
		if (this.tabsAndActionsContainer) {
			let tabsContainerBorderColor = this.getColor(EDITOR_GROUP_HEADER_TABS_BORDER);
			if (!tabsContainerBorderColor && isHighContrast(this.theme.type)) {
				tabsContainerBorderColor = this.getColor(TAB_BORDER) || this.getColor(contrastBorder);
			}

			if (tabsContainerBorderColor) {
				this.tabsAndActionsContainer.classList.add('tabs-border-bottom');
				this.tabsAndActionsContainer.style.setProperty('--tabs-border-bottom-color', tabsContainerBorderColor.toString());
			} else {
				this.tabsAndActionsContainer.classList.remove('tabs-border-bottom');
				this.tabsAndActionsContainer.style.removeProperty('--tabs-border-bottom-color');
			}
		}

		// For each tab
		this.forEachTab((editor, index, tabContainer, tabLabelWidget, tabLabel, tabActionBar) => {
			this.redrawTab(editor, index, tabContainer, tabLabelWidget, tabLabel, tabActionBar);
		});

		// Update Editor Actions Toolbar
		this.updateEditorActionsToolbar();

		// Ensure the active tab is always revealed
		this.layout(this.dimensions, options);
	}