Dragon aspects (shifter)which Dragons have what resistances?

[Dragonseed]

So i rolled up a Dragon shifter of the Metal Type.I can Shift between 5 or 6 types such as gold or copper..I do not know which dragon types have elemental resistances and i cant seem to figure out what aspects to use under which circumstances.Why are these not explained easy and quick?Please point me to a chart or something so i can write and reference.I have searched around but still am just guessing.is it copper that has acid resistance?is silver For cold...see im just guessing.Thanks guys.

[Gaming Chaku]

This may be a bit late, but this is all I could find:
Black = Acid
Blue = Electricity
Green = Acid
Red = Fire
White = Cold
Brass = Fire
Bronze = Electricity
Copper = Acid
Gold = Fire
Silver = Cold

[Dragonseed]

Thank you