src/vs/workbench/contrib/debug/browser/debugActionViewItems.ts/StartDebugActionViewItem/setFocusable
class StartDebugActionViewItem:	override setFocusable(focusable: boolean): void {
		if (focusable) {
			this.start.tabIndex = 0;
		} else {
			this.start.tabIndex = -1;
			this.selectBox.setFocusable(false);
		}
	}