The Label Size command allows the user to specify the size of the text labels used to identify the departments and the edges. Windows displays the labels in a font size that most closely matches the desired label size.
The display of the department and edge labels is controlled by the Department Labels and Edge Labels command of the View menu, respectively.
Click on OK to accept the modifications that you have made to the label size. If you click on Cancel then all the modifications that you made to the label size will be discarded and the label size will not be modified.
For more information see: