Several options may be set in the next driver.
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.