Icons
What do the circles mean and the different colours?
Would be nice to have an icon menu or description of each icon meaning.

Thanks for the feedback. If you are talking about the circles on the profiles of guys those are just to let you know if someone is online at the moment or not. Green means they are online now, otherwise they are not online at the moment.
As per the icons… which icons are you having issues with? Or which icons are not clear?