This dialog appears when you double-click a category (X) gridline of a chart, or right-click a chart and then select Format Gridlines > Category (X) Gridline from the shortcut menu. It helps you to format the gridlines shown on the category (X) axis of a chart. See the dialog.
The following are details about options in the dialog:
Line Color
Specifies the color schema of the gridlines.
To change the color, click the color image button to display the color palette in which you can select a color, or click More Colors to customize the color within a wider range in the Pick a Color dialog. You can also input the hexadecimal value of a color directly in the text box after #.
Line Style
Specifies the line style of the gridlines.
Transparency
Specifies the transparency of the color that is applied to the gridlines.
Thickness
Specifies the thickness of the gridlines, in pixels.
OK
Applies the changes and closes the dialog.
Cancel
Does not retain any changes and closes the dialog.
Apply
Applies all changes and leaves the dialog open.
Help
Displays the help document about this feature.
