message: Fix rendering regression caused by
diff: @@ -252,7 +252,13 @@ private:
  auto rect = GetClientRect();
  if (!rect.IsEmpty())
  + {
  +#if wxCHECK_VERSION(3,1,1)
  + gc->DrawRoundedRectangle(rect.x, rect.y, rect.width, rect.height, PX(2));
  +#else
  gc->DrawRectangle(rect.x, rect.y, rect.width, rect.height);
  +#endif
  + }
  }
  wxColour m_fg, m_bg;
  