interface_build {
    {d.legend} 0
    {Displays a legend for a raster map layer.}
    {entry map {Raster map, required:} 0 raster}
    {entry color {Legend text color [white]:} 0 color}
    {entry lines {Number of lines in the legend (0-1000) [all]:} 0 ""}
    {entry thin {Thinning factor (thin=10 gives cats 0,10,20...) [1]:} 0 ""}
    {entry labelnum {Number of text labels for smooth gradient legend (2-100) [5]:} 0 ""}
    {entry at {Placement coordinates (0-100% of graphics monitor) (bottom,top,left,right) [auto]:} 0 ""}
    {entry use {Discrete categories/values to use (cat[,cat,...]) [all]:} 0 ""}
    {entry range {Category range (min,max) [all]:} 0 ""}
    {checkbox -v {Do not show category labels.} "" -v}
    {checkbox -c {Do not show category numbers.} "" -c}
    {checkbox -n {Skip categories with no label.} "" -n}
    {checkbox -s {Draw smooth gradient.} "" -s}
    {checkbox -m {Use mouse to size & place legend.} "" -m}
    {checkbox -f {Flip legend.} "" -f}
}