Kinda strange, I can't recognize the text size being smaller than before, i.e. I see no difference.
I have no problems with reading it but I agree, the text color might be set a little darker.
Anyway, to change the text size it is possible for me to press Ctrl + Scroll with the mouse.
I use Firefox, but if I remember correctly, it also worked for IE.
I prefer the smaller size btw.