What are these things and what do they mean?

[Matthew.]

Couldn’t find an answer anywhere else I looked
I know it’s a bit trivial kind of but what are they and what does each one mean

and obviously i’m talking about the circle things that i circled in red

[RileyH]

Hot topic/non hot topic

[Jordan.]

Baubles

[Matthew.]

Hot topic/non hot topic

thanks

[Smithy]

Gold is unread, grey is read

[Matthew.]

thanks Smithy :)

[y.winter]

Hot topic/non hot topicWe love Imogen Thomas

[Withano]

I thought it was this
Hot topic/non hot topic
And not this
Gold is unread, grey is read

?

[Withano]

http://i66.tinypic.com/mv2d6d.png

[Matthew.]

Thanks for that Withano, that doesn’t appear on my screen though but thanks for putting that in :)

[Smithy]

Got me green and gold confused, but either way it’s the same thing really