sandy theme to the bathymetry data object.ptolemy theme to the topos data object.colorpoints function and ramplegend functions for the efficient visualization of ramps.paleomap data object.etopo and demcmap data.frames to topos.ramplegend function does not have x="left", x="right", "x=bottom" and top "x=left" settings, horizontal=TRUE is not yet implemented, and neither are margial legends.First version.