The FILL-AREA-INTERIOR-STYLE is the way the area is covered, there are 4 possibilities:
Additional Information on:
The hatch or pattern with which the area should be filled, refer to the GKS guide for a catalogue.
The colour to be used to fill the area. Two colours are known on every workstation: BACKGROUND and FOREGROUND. If your workstation allows, you may add further colours yourself using !COLOUR.
In the event you select PATTERN to fill the area, you may vary the size of the pattern box. Two values are needed: the x and the y scaling.
The coordinate of the point from where the pattern boxes are tiled to fill the area.