It's possible to modify it with msstyleEditor. Open the theme's .msstyles file, then navigate to AeroWizard->TITLEBAR. On the right pane, make sure TEXTGLOWSIZE is set to 12 and GLOWINTENSITY is set to 250 - this restores the Windows 7 glow effect.
You can also change the text color (TEXTCOLOR), it can be different depending on whether the window is active or not.
It's possible to change the font as well (under AeroWizardStyle), but I'm not sure whether msstyleEditor can do it. I'm looking at the options in the older version of it, which only allows setting predefined values.
With Windows Style Builder, you get the full dialog allowing for font selection, size etc.