How do I make the arrow for profile Information from white to black?

Hi all!
Have a question.
How do I make the arrow for profile Information from white to black?
Thank you all for the help!

jerry Basic on 09/15/18 at 20:16 in mooSocial features
2 Answer(s)
Which arrow? can you please give me screenshot?
Mark Gold badges on 09/15/18 at 21:48
hi, Mark
thanks for reply. I thought I had attached screenshot but it didn't show.
I attach it again.

jerry Basic on 09/16/18 at 03:53
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