Change the blue fill to a Circular Fill by selecting the fill, then the Fill Tool (the pouring paint can icon on the main tool bar on the left), and then selecting Circular from the Fill Type drop-down menu. Leave the center of the fill white which is the default. Drag the center of the fill downward as shown. Import the sand fill (sand.tif) included in the downloaded files. Select the text, then open the Bitmap Gallery on the Infobar, click on the sand bitmap image and click Fill. Adjust the size of the fill as needed.