Table 'thead' cell Color

Good morning All,

 

I have been using DocBook to create a report generation system and thanks 
to all the help I have recieved on this site I have go there a lot quicker than 
I would have done on my own.

 

I have one last thing (before the next phase anyway) that I would like some 
help on.

 

I have created a customisation layer that outputs the reports in our 
company standard format and I would like to be able to specify how the table 
heading cells are formatted.  I do not want to have to hard code it into 
the application as I believe this should be done in the stylesheet.

 

However although I can match the template for thead in the customistation 
layer I cannot work out how to change the cell color and the font weight (and 
color).

 

If anyone has any ideas that would be great.

 

Thanks lots,

Russell