Deacon you're right about that.
I read the thread you referenced - I already have set fonts for the reading window and it does help a bit once the mail message is open. But do you know of any way to alter the colors employed, and/or to increase the font size at the summary/overview level so that the Subject/sender/ detail is more readable in list form? I can find no way to do either of those which is what sent me looking for a Theme change. I find nothing whatsoever about alternate themes so I am leaning toward switching him over to T'bird. [i use personally and like it better that Outlook, and no contest vs Live Mail]