From what I know, they made this variable local. It means you CANNOT access it from outside Blizzard's code.

local LARGE_AURA_SIZE = 21;
local SMALL_AURA_SIZE = 17;

Live with it :-).
BTW, the Auras you apply are already bigger (21 as opposed to 17), so you can distinguish them. It's just harder.

Update please ^^

i NEED this! Pls Update

Any chance to see this nice addon working again?

This Addon is exactly what I'am looking for. Thankyou.

when the buff size is set to a large number, applying multiple debuffs causes them to clip through the default target of target frame (instead of forming a new line)