message: Fix use of an obsoleted function, we should update though
diff: @@ -891,7 +891,7 @@ struct ImGuiIO
  #ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
  namespace ImGui
  {
  - bool Begin(const char* name, bool* p_open, const ImVec2& size_on_first_use, float bg_alpha_override = -1.0f, ImGuiWindowFlags flags = 0); // OBSOLETE 1.52+. use SetNextWindowSize() instead if you want to set a window size.
  + IMGUI_API bool Begin(const char* name, bool* p_open, const ImVec2& size_on_first_use, float bg_alpha_override = -1.0f, ImGuiWindowFlags flags = 0); // OBSOLETE 1.52+. use SetNextWindowSize() instead if you want to set a window size.
  static inline void AlignFirstTextHeightToWidgets() { AlignTextToFramePadding(); } // OBSOLETE 1.52+
  static inline void SetNextWindowPosCenter(ImGuiCond cond = 0) { SetNextWindowPos(ImVec2(GetIO().DisplaySize.x * 0.5f, GetIO().DisplaySize.y * 0.5f), cond, ImVec2(0.5f, 0.5f)); } // OBSOLETE 1.52+
  static inline bool IsItemHoveredRect() { return IsItemHovered(ImGuiHoveredFlags_RectOnly); } // OBSOLETE 1.51+
  