@NotNull
  List<Integer> getAnchorIndexes(@Nullable EditorColorsScheme scheme) {
    if (scheme == null) scheme = EditorColorsManager.getInstance().getGlobalScheme();

    List<Integer> result = new ArrayList<>(ANCHORS_COUNT);

    int count = 0;
    for (ColorKey key : ANCHOR_COLOR_KEYS) {
      if (scheme.getColor(key) != null) {
        result.add(count);
        count += COLORS_BETWEEN_ANCHORS + 1;
      }
      else {
        result.add(null);
      }
    }

    return result;
  }
@NotNull
  List<Integer> getAnchorIndexes(@Nullable EditorColorsScheme scheme)