* COLOR for BIAS
* should set the ccols intevel and clevs in excel then copy to .gs
* 18 color      99= white
*       start   101-109: white ->DarkOrange
*               201-209: white ->Darkblue   
* see more: https://www.ncl.ucar.edu/Document/Graphics/ColorTables/BlueDarkOrange18.shtml
* white difination 
'set  rgb       99      255     255     255'
*
'set  rgb       209     0       102     102'
'set  rgb       208     0       153     153'
'set  rgb       207     0       184     204'
'set  rgb       206     0       204     255'
'set  rgb       205     51      220     255'
'set  rgb       204     101     235     255'
'set  rgb       203     153     255     255'
'set  rgb       202     178     255     255'
'set  rgb       201     203     255     255'
'set  rgb       101     229     255     255'
'set  rgb       102     255     229     203'
'set  rgb       103     255     202     153'
'set  rgb       104     255     173     101'
'set  rgb       105     255     142     51'
'set  rgb       106     255     110     0'
'set  rgb       107     204     85      0'
'set  rgb       108     153     61      0'
'set  rgb       109     102     39      0'