+There are 3 font render modes:
+
+B<normal>: Full Hinting and Antialiasing (default)
+
+B<light>: Slight Hinting and Antialiasing
+
+B<mono>: Full Hinting and NO Antialiasing
+
+
+[B<-B>|B<--font-smoothing-threshold> I<size>]
+
+(this gets ignored in 1.3 for now!)
+
+This specifies the largest font size which will be rendered
+bitmapped, that is, without any font smoothing. By default,
+no text is rendered bitmapped.
+
+[B<-G>|B<--graph-render-mode> {B<normal>,B<mono>}]
+
+There are 2 render modes:
+
+B<normal>: Graphs are fully Antialiased (default)
+
+B<mono>: No Antialiasing
+
+[B<-E>|B<--slope-mode>]
+
+RRDtool graphs are composed of stair case curves by default. This is in line with
+the way RRDtool calculates its data. Some people favor a more 'organic' look
+for their graphs even though it is not all that true.
+
+[B<-a>|B<--imgformat> B<PNG>|B<SVG>|B<EPS>|B<PDF>]
+
+Image format for the generated graph. For the vector formats you can
+choose among the standard Postscript fonts Courier-Bold,
+Courier-BoldOblique, Courier-Oblique, Courier, Helvetica-Bold,
+Helvetica-BoldOblique, Helvetica-Oblique, Helvetica, Symbol,
+Times-Bold, Times-BoldItalic, Times-Italic, Times-Roman, and ZapfDingbats.
+
+[B<-i>|B<--interlaced>]
+
+(this gets ignored in 1.3 for now!)
+
+If images are interlaced they become visible on browsers more quickly.
+
+[B<-g>|B<--no-legend>]
+
+Suppress generation of the legend; only render the graph.
+
+[B<-F>|B<--force-rules-legend>]
+
+Force the generation of HRULE and VRULE legends even if those HRULE or
+VRULE will not be drawn because out of graph boundaries (mimics
+behaviour of pre 1.0.42 versions).
+
+[B<-T>|B<--tabwidth> I<value>]
+
+By default the tab-width is 40 pixels, use this option to change it.
+
+[B<-b>|B<--base> I<value>]