src/vs/workbench/browser/parts/activitybar/activitybarPart.ts/ActivitybarPart/createContentArea
class ActivitybarPart:	override createContentArea(parent: HTMLElement): HTMLElement {
		this.element = parent;

		this.content = document.createElement('div');
		this.content.classList.add('content');
		parent.appendChild(this.content);

		// Install menubar if compact
		if (getMenuBarVisibility(this.configurationService) === 'compact') {
			this.installMenubar();
		}

		// View Containers action bar
		this.compositeBarContainer = this.compositeBar.create(this.content);

		// Global action bar
		this.globalActivitiesContainer = document.createElement('div');
		this.content.appendChild(this.globalActivitiesContainer);

		this.createGlobalActivityActionBar(this.globalActivitiesContainer);

		// Keyboard Navigation
		this.registerKeyboardNavigationListeners();

		return this.content;
	}