/*
represent through image -->
stack			dark yellow on bottom of icon
  with direction, in or out, or stack operation
get			_ black on brown
set			! black on brown
mep			upper part of icon green
variable		lower part of icon brown
mep variable		med green upper part of icon
current mep		green with @
current node		cyan
string			med beige with double quotes
number			med orange with # symbol
string operation	& or ^ on right or left of icon on med beige
file exec		magenta on lower part of icon
if			green on left red on right with ?
proc			then green or red else parts
current exec		current call space med green magenta on lower
recurse
downstream		( on right of icon medium green
numeric operation	+ or - on left of icon on med orange
name ----------- convert this usage to regular expression
lookup			med purple on icon left red/green on right
  possible magenta on lower part of icon
label			dark purple
label exec		med green centered on dark purple
no-exit			bright med purple entire icon with right-arrow
break			? bright red-purple entire icon
piped			[] dark turquoise
tree-op			dark green
verb basis		black on white
verb classed		dark blue on white
comment			dark grey

*/