The Label Preferences dialog is used to configure the way labels appear on an image. Labels are created using the Label Toolbar (see the Labeling Images). Using this Dialog to change the font, color, position, marker, and other properties of labels. Settings can be applied to the current Image Window only or they can be made the default for future use by clicking the [Save] button.
The way the marker appears is affected by both the Marker Style and the Size preferences. The Size settings are different for circle labels and line labels. For example:
For a Line style label, the angle of the line can be changed by using the Text location to choose the quadrant around the point of interest, then using the Width and Height settings to control the direction in that quadrant.
For a Circle label, the size preferences become Diameter and Offset for adjusting the text position relative to the circle.