public static @NotNull StringBuilder appendStyledSpan(
    @NotNull StringBuilder buffer,
    @NotNull TextAttributesKey attributesKey,
    @Nullable String value,
    float saturationFactor
  ) {
    appendStyledSpan(
      buffer,
      Objects.requireNonNull(EditorColorsManager.getInstance().getGlobalScheme().getAttributes(attributesKey)),
      value,
      saturationFactor);
    return buffer;
  }
public static @NotNull StringBuilder appendStyledSpan(
    @NotNull StringBuilder buffer,
    @NotNull TextAttributesKey attributesKey,
    @Nullable String value,
    float saturationFactor
  )