In addition to the satellite and graphic banks that David mentioned, there are also radar and fax. Default color banks defined in colors.h are: 95 satellite colors 20 radar colors 33 graphic colors 2 Fax colors The maximum number of colors in a table is 256 which is compatible with 8 bit color. Steve Chiswell Unidata User Support On Thu, 2006-02-23 at 10:25, David Ovens wrote: > Patrick, > > Actually you can have 95 levels of enhancement for "satellite" imagery > and the other 33 of (128-bit color) are 1 for background and 32 for > the lines and colors of overlays. > > David