Elli May update and another question

Hello everyone. Well Elli May's eating problem disappeared the day after my posting about her not eating well. I guess it was a phase as now she is ravenously consuming all she can get. We upped her meals by about a half a cup as we figure she is going through another growth spurt. She will be 10 months in two days. Wow! She is growing up fast.
I do however have a question regarding her coat. She is a mantle great dane but right now she looks like she is "rusting". There looks to be a brownish tint to her coat. It is also a bit dry looking. Is this just a winter coat thing? It looks like she is black with deep brown "highlights" does that make sense? Someone else wouldn't even notice but as her momma of course I do. Any ideas? Appreciate it!