Styling the Axis Caption
The axis caption, set in the X-Axis and Y-Axis element's Caption attribute, can be styled by adding a child Caption Style element.
The Caption Style element has an AlignmentHorizontal attribute for positioning the caption along the axis. For an X-axis, the options are Left, Center (the default), and Right. For a Y-axis, the options are the same but apply vertically, where Left = Bottom, and Right = Top.
The Caption Spacing attribute allows you to adjust the space between the caption and its axis, in pixels.
Caption Style also has a set of font-related attributes that allow you to specify font family, color, size, etc.
A Format attribute allows you to easily format the caption text.