This may be helpful.
Put it in a field script then send alternatelines to the field.
Of course, it could be easily adapted to accept color parameters, too.
Jim Lambert
on alternateLines
-- copyright 2006 Jim Lambert
-- You're free to use this anywhere as long as the credit line
remains.
lock screen
set the fixedLineHeight of me to true
set the topmargin of me to 4
answer color --THE COLOR OF THE FIRST LINE
if the result is cancel then exit alternateLines
put it into Ln1color
answer color --THE COLOR OF THE SECOND LINE
if the result is cancel then exit alternateLines
put it into Ln2color
if there is not a grc "Ln1" then create grc "Ln1"
if there is not a grc "Ln2" then create grc "Ln2"
set the opaque of grc "Ln2" to true
set the opaque of grc "Ln1" to true
set the linesize of grc "Ln2" to 0
set the linesize of grc "Ln1" to 0
set the backcolor of grc "Ln2" to Ln2color
set the backcolor of grc "Ln1" to Ln1color
set the width of grc "Ln1" to the effective textheight of me
set the width of grc "Ln2" to the effective textheight of me
set the height of grc "Ln1" to 2* (the effective textheight of me)
set the height of grc "Ln2" to (the effective textheight of me)
set the bottomleft of grc "Ln2" to the bottomleft of grc "Ln1"
import snapshot from rectangle (rect of grc "Ln1") of this card
put the id of the last image into imgID
set the backgroundpattern of me to imgID
delete img id imgID
delete grc "Ln1"
delete grc "Ln2"
unlock screen with wipe down fast
end alternateLines
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