message: Prevent nullptr bug if defaultTitleFont is not set
diff: @@ -219,8 +219,14 @@ NAS2D::Font* StringTable::getCellFont(std::size_t index) const
  NAS2D::Font* font = cells[index].font;
  if (font == nullptr) {
  + // If a different title font is not desired, it is set to nullptr
  + if (defaultTitleFont == nullptr) {
  + font = defaultFont;
  + }
  + else {
  font = isFirstColumn(index) ? defaultTitleFont : defaultFont;
  }
  + }
  return font;
  }
  