Text settings are for blog posts only, not for pages?

Hello Cryout folks,

Thanx for the Parabola theme. Personally I use Mantra in my personal website http://www.fulco.eu but on one of my (our) business pages I use parabola (see http://www.dfw-europe.com). In the theme text settings I changed all fonts to Calibri, but this does not seem to apply for the WYSIWIG part of the (standard) WordPress editor we use. In the editor the font is a different one than the one chosen. Is that a WordPress issue, or a theme issue?
Thnx in advance.