3 .ds Tl "Acme: A User Interface for Programmers
4 .ds Au "USER INTERFACES
10 .if \\n(OL .lt \\n(OLu \" why isn't this reset???
11 .if \\n(BT>0 .if e .tl @\\n(PN \s\\n(Ps\\*(Au\s0@@@
12 .if \\n(BT>0 .if o .tl @@@\f2\\*(Tl\\f1 \\n(PN@
13 .if \\n(BT=0 .tl '\0''' \" put out something or spacing is curdled
16 . \" BT - bottom title
19 .sp |\\n(FMu/2u+\\n(FOu-1v