@NotNull
  public static Color getDividerColor(@Nullable Editor editor) {
    EditorGutter gutter = editor != null ? editor.getGutter() : null;
    if (gutter instanceof EditorGutterComponentEx) {
      return ((EditorGutterComponentEx)gutter).getBackground();
    }

    return getDividerColorFromScheme(editor != null ? editor.getColorsScheme() : EditorColorsManager.getInstance().getGlobalScheme());
  }
@NotNull
  public static Color getDividerColor(@Nullable Editor editor)