Give Glowing To Trial Chamber Mobs If The Trial is Taking Too Long

Trial Chambers are really fun but many times I find myself searching for the last few straggler mobs which takes away the fast paced intense fun I get from the chambers and is just annoying. I think that maybe if a Trial Chamber is taking over 1 minute the mobs from the Trial should start glowing or maybe implement some kind of bell-like functionality seen in raids but for Trial Chambers. (maybe right click the Trial Spawner idk)