humm i went to Moors to test my guess. And the good coding is :
player_vitals_backdrop_1_year_mp
opponent_vitals_backdrop_5_years_mp
player_vitals_backdrop_mini_1_year_mp
-------------------------------------------------------------------------------------------
As for Signature in moors i never saw a code with signature MP but more with *
opponent_vitals_signature_good.tga*
But so far, i did not add on that particular code anything concerning the anniversary as i thought that no creeps or freeps could be signature (i mean players not the npc or monsters creatures)
At least my UI works fine so far.