floor-border-color, floor-color attribute

Used By:Graph elements except piegraph
See:ywall-border-color ywall-color floor-grid zwall-border-color zwall-color

What color, if any, to draw the "floor" of the graph (either where y=0 or y=min(y), depending on the value of xaxis-at-zero).

You can set the color and border color, or just set the border color for a grid on an otherwise transparent wall - although the grid can be modified with the XWALL-GRID attribute.

This draws black lines on a gray background

bargraph { floor-color:gray; floor-border-color:black }