KMail HTML viewer: font size

[solitone]

Ok, I've changed the default header theme, and now the subject appears the 
size I like.

Yet one thing I need to adjust are icons used for attachments, which are still 
too small. I see the default theme displays attachments thanks to this line in 
header.html:

<div id="attachmentInjectionPoint"></div>

However there is no such reference in style.css. Need to dig further.

Thanks & Regards