Inherit Design From Master Template

Hi Friends, In my mail Template i have changed the body font color as blue.So wat ever mails i send they go in blue color.On the first day it is ok.But the next day the font have been reset back to Black color.Is it because of the Property “Inherit Design From Master Template”.I have Enabled this property and i have mentioned the Template Name in the below.Everyday morning my mail inherits the design from the Template Mentioned below.IS it because of this property my mail body font color changes.Can any one help me with this problem.

   Thanks in Advance.

Subject: RE: Inherit Design From Master Template

yes, that is correct. if you wish, you can exempt individual forms from design refresh, or the whole database.