@Nullable
        private static PsiReference createToolwindowIdReference(@NotNull PsiElement element, String text) {
          if (!isToolwindowKey(text)) return null;

          String id = StringUtil.notNullize(StringUtil.substringAfter(text, TOOLWINDOW_STRIPE_PREFIX)).replace('_', ' ');
          return new ToolwindowIdReference(element, id);
        }
@Nullable
        private static PsiReference createToolwindowIdReference(@NotNull PsiElement element, String text)