To adjust the dimensions of a fractal freely
Drag the edges of the fractal window.
The width and height appear on the right side of the status bar as W: and H:.
To set the dimensions of a fractal exactly
1) On the Options menu, click Fractal Size.
2) Adjust the Fractal width and Fractal height values.
You can click the available preset buttons to set the width and height to common values.
Use the Desktop button to use a fractal as desktop wallpaper. This setting will automatically maximize the current fractal window and the Fractal eXtreme window so that the Save As Wallpaper command will save the current fractal to fully cover the desktop.
3) Click OK.