A “Lock Aspect Ratio” checkbox is included to the Details panel for objects.
When checked, changes made to either the width or height of the object will automatically be applied proportionally to the other value, so that the object aspect ratio (the ratio between the object’s width and height) remains constant. Note: Unlike the other data that appears on this panel, this setting is not associated with specific objects and is not saved as part of the design; instead, it modifies the operation of the two fields (width and height) immediately to its left.
