About the Chat Bar
The Chat Bar on the right side:
It will work. Give it time and patience it is in beta. It is Text only and when you write a message it is in white, when you hit send it is in black. I don't have a way to change the color of the chat bar or the text of the chat.
I am working on a video chat bar for this site. We may be able to add skysa and if so I will be working on this for the website.
Perhaps there is some css coding I can do for the chat bar.
If your friend is online but not showing on Chat:
Click your chat bar and select offline for a moment, and reload the page. Then click chat bar again and it should reconnect and show their messages to you.