[For 1.8] Square theme

[Mordicus]

Hello, I'm reposting here a question posted in another thread:

Is it normal that the small round and grey icon at the beginning of each topic/subforum do not change when new messages are posted?

Would it possible to make an update so it would change colour (ie black or dark blue), and easier to see in which part of the forum (or subforum) new messages have been posted? 

Thank you.