Good question, I updated the entirety of the roleplay, changed the backstory and made a few nice additions.

Basically, the color of ones scales wont make them so special. Merely, it defines the type of dovah they are. The fire ones generally more yellow, orange, red. The frost ones a blue, grayish, sometimes dark green color. The forest/nature dragons are green, yellow and a few other colors I think but they actually have more horns and tufts of fur in between their scales. The ancient and magic dragons are an assortment of all the colors, with the ancients being more glowing and radiant.

I'll be adding the aspects of magic and updating the dragon type descriptions over this next week. I'll probably be adding a few other sections as needed.