.box mybox2 width=100 height=50 color=black #same as above
.box mybox3 width=100 height=50 color=black fill #filled black rectangle
.box mybox4 width=100 height=50 color=red line=2 fill=blue #blue rectangle with red edges
.box mybox2 width=100 height=50 color=black #same as above
.box mybox3 width=100 height=50 color=black fill #filled black rectangle
.box mybox4 width=100 height=50 color=red line=2 fill=blue #blue rectangle with red edges