message: Minor update to definitions of centerWindowWidth() and centerWindowHeight() functions.
diff: @@ -38,7 +38,7 @@ extern Rectangle_2d MOVE_DOWN_ICON;
  *
  * \note Truncating the fractional value is intentional.
  */
  -int centerWindowWidth(float width)
  +static inline int centerWindowWidth(float width)
  {
  return static_cast<int>(Utility<Renderer>::get().center_x() - width / 2);
  }
  @@ -50,7 +50,7 @@ int centerWindowWidth(float width)
  *
  * \note Truncating the fractional value is intentional.
  */
  -int centerWindowHeight(float height)
  +static inline int centerWindowHeight(float height)
  {
  return static_cast<int>(Utility<Renderer>::get().center_y() - height / 2);
  }
  