Assign the libref and set the graphics environment. LIBNAME associates the libref GFONT0 with the location of the SAS data library where your device maps and key maps are stored.
libname gfont0 'SAS-data-library';
goptions reset=global gunit=pct border cback=white
         colors=(black blue green red)
         ftext=swiss ftitle=swissb htext=6;