Yeah, no drama, don't lose sleep over it. Should be normal after the next slough and not cause any distress in the mean time. No worse than a bad hair day.
Haha, my heart has skipped beats many times when a black scale has caught my eye! I haven't had a mite outbreak since the mid 90s though (two or three times I've brought them in since then but quarantine did its job nicely and saved me, the last was in 2007).