yea i thought builtin freezestatus would be cool.
maybe something like this

(that is alpha transparency but the background makes it look not like it)
so the BLK#### would be the block number
the ##% would be the block health
F is the last frozen and U is the last unfrozen
(it would be team coloured like the health is currently)
then if you wanted to unfreeze the block the same shaped panel would be there with the bars to be unfrozen