Draconic Aspect

you possess some of the qualities of your dragon ancestors.

 Your scales take on the color and some of the resistances of one of the chromatic or metallic dragons. Choose one of the following chromatic or metallic dragon types: black, green, or copper (acid); blue or bronze (electricity); red, brass, or gold (fire); or white or silver (cold). Your scales take on the color of that dragon, and you gain resistance 5 to the dragon color's corresponding energy type.
Special: If you have the dragon-scaled racial trait, your scale color does not change and you gain a +1 natural armor bonus instead.