message: Changed the internal name formatting of child windows to use slashes as separator, more readable.
diff: @@ -3722,9 +3722,9 @@ static bool BeginChildEx(const char* name, ImGuiID id, const ImVec2& size_arg, b
  char title[256];
  if (name)
  - ImFormatString(title, IM_ARRAYSIZE(title), "%s.%s.%08X", parent_window->Name, name, id);
  + ImFormatString(title, IM_ARRAYSIZE(title), "%s/%s_%08X", parent_window->Name, name, id);
  else
  - ImFormatString(title, IM_ARRAYSIZE(title), "%s.%08X", parent_window->Name, id);
  + ImFormatString(title, IM_ARRAYSIZE(title), "%s/%08X", parent_window->Name, id);
  bool ret = ImGui::Begin(title, NULL, size, -1.0f, flags);
  ImGuiWindow* child_window = ImGui::GetCurrentWindow();
  