I don't understand why Giratina=platinum. Why is this relevant, what does it mean? How does platinum have any relation to diamonds and pearls or ANYTHING about Giratina?

Also, in looking for the header image I just realized

>dialga and palkia have horizontal and vertical lines in front of their eyes, symbolizing the fabric of time and space
>giratina has diagonal lines, indicating it slips between time and space

Neat detail.