I have text turned on and the DF taskbar at 95% transparency (to make it look and feel more like the W7 taskbar, since it is not 100% transparent either). My text is already fuzzy to begin with, and gets worse with the glow. However, I always know what is there, so....to me this is a very minor annoyance - I prefer having the glow effect and transparency effect and will live with blurry fonts.
However, it is a good thing that you reported it.
I am I.
It also depends upon the transparency level and the background behind the toolbar.
I had a lighter-colored background and it was harder to read, but when I switch to a darker color background, it is easier to read. If I had the DF toolbar set to auto hide, then the background is usually another windows that is full screen, and more often than not that means that the background is a much lighter background than if it is not auto hiding, and thus showing my desktop wall paper through)which is a mixture of grays and dark grays).
I am I.
It works for me right now with a dark background and auto-hide disabled. I'll try with auto-hide enabled, although, tbh, I rarely have to look at the wording on my taskbar as I usually look at the icon and know what I am looking for / at.
OK, #1: My file mananger, xplorer^2 in the background, with a baby blue pane shading, DF TB AH enabled, xplorer^2 button highlighted (glow).
#2: Thunderbird in teh background, White background, DF TB AH enabled, xplorer^2 button highlighted (glow).
#3: Wallpaper in the background, normal DF TB AH disabled, nothing highlighted (although it looks like the Thunderbird icon is highlighted a bit).
#4: Wallpaper in the background, normal DF TB AH disabled, xplorer^2 button highlighted (glow).
I am I.

DF TB highlight 1.PNG

DF TB highlight 2.PNG

DF TB highlight 3.PNG

DF TB highlight 4.PNG
No worries - we know you're on it....
I am I.