Syntax:
set terminal next {<mode>} {<type> } {<color>} {<dashed>} {"<fontname>"} {<fontsize>} title {"<newtitle>"}
where mode is default, which sets all options to their defaults; type is either new or old, where old invokes the old single window; color is either color or monochrome; dashed is either solid or dashed; "fontname" is the name of a valid PostScript font; fontsize is the size of the font in PostScript points; and title is the title for the GnuTerm window. Defaults are new, monochrome, dashed, "Helvetica", 14pt.
Examples:
set term next default set term next 22 set term next color "Times-Roman" 14 set term next color "Helvetica" 12 title "MyPlot" set term next old
Pointsizes may be changed with set linestyle.