Chris,
I just downloaded a fresh copy from SF. I couldn't find ANY objects that adjusted the size of the font, but did find one that adjusts the size of the textbox based on text length.
Not exactly what I'm looking for, but helpful info in there.
Thanks
And for anyone else looking into something similar - the object name in the STD FC is:
STD_FC_PB_Base.pbl - vs_st_autosize_master