Besides using Theme Organizer to apply the styles/formats to the graphs globally, you can also use Graph Options dialog to change the default format/styles of the graphs.
To open the '''Graph Options''' dialog,
Note: By default, some default settings have been pre-shipped with a global system theme. You can see some options showing as Auto. Once a setting has been changed in Graph Options dialog, it will have higher priority than the system default theme, and will be applied to system built-in templates, but not for user templates.
 | In this dialog, there are several checkboxes, which have 3 states:
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Change the line thickness for the axies.
Change the tick direction, the length of the major ticks and minor ticks. This option is only for 2D Cartesian graph layers.
Specify whether show gradlines for major ticks and minor ticks and the line styles for the gridlines on major ticks and minor ticks seperately.
Specify whether rotate the tick labels if labels are overlapped. And enter a angle value to rotate the tick labels.
Type a positive number in this text box to rotate labels counterclockwise, and a negative number to rotate labels clockwise.
Specify whether show the layer frame for current layer. This option is only for 2D Cartesian graph layers.
Specify whether show arrow at the end of the axes. You can choose an arrow style from the following drop-down list and set the arrow size.
This option is diabled by default, enabled when the option Show Layer Frame is unchecked.
This option can be used to specify whether to add padding to minimum and maximum values during X axis rescaling. This option is similar to the option Rescale Margin(%) in Scale tab of Axis dialog.
The options in this tab are used to control the font and boldness for different text objects on the graph. The settings will affect both the existing objects and default style of adding new objects.
Change the font of all objects in the graph, including the graph tables.
You can change the font and boldness of Tick Labels, Axis Title, Legend, Data Labels, Layer Title, Page Title, Text Objects, Annotaion, Reference Line Labels and Layer Labels.
Specify the graph size. The size options have the same effect as the size settings under the Dimensions group in the Print/Dimensions tab of Plot Details dialog.
Specify whether fix the scale factor to 1.
You can refer to the option Fixed Factor in Size tab of Plot Details dialog to learn what the sacle factor is.
When there are many layers in the graph, you can use this option to specify the gap betwen the layers. The unit of this option is % of page size.
Specify the margin for the whole graph. The unit of this option is % of page size.
By default, the page margin has been set to 3% and there will be an addtional margin for top margin in case you want to add page title or layer title.
Specify where to position the legend.
Show the legend only when the number of curves in current layer is greater than 1. If there is only one dataset in current layer, no legend will show for current layer.
Specify whether show the legend outside of the layer for each graph layer. Uncheck this check box will show legend within the layer frame at specified position.
Specify how to arrange the legend entries, horizontally or vertically.
Specify whether show a frame for the legend. If the frame was shown, you can change the frame border color, border width, and fill color within the frame.
At the top-right corner of dialog, there are two buttons: Save Settings as button 
and Load Settings button 
Choose the target graphs to apply the format/style settings. Active Graph is only availiable when the active window is a graph window.
