I haven't played luckyb.it in a while as well but saw people talking about the new layout so was curious
Design wise it is nice to see the blockchain hashes as a clickable option but the old symbol did look nicer.
Just my 2 cents
Old icon symbol was also clickable. It just seems a bit too poppy (in a bad way) for the mellow dark background. The bright light blue on the dark brown and green background just looks bad.
I was thinking that since it looks off people are more likely to hover over it and discover that they can click on it instead of using the bet lookup

I agree with you that it does look bad relative to the old design and that the new design needs a different skin to match it.