As a side note - For Journey notes Plate Nos:
FPN - for all notes is on clear white background
BPN
$5 - on polygonal pattern
$10 - on straight horizontal line pattern but with little contrast between ink of number and ink of background
$20 and $50 - on circular pattern
$100 - on "worm" pattern
Anyone else has fun deciphering the little nuances of the banknote design?