Dear Sir.
I update my tcl/tk/tix tools from 7.5 to 8.4(with tix8.1.4),
Execute, Then I found the font in tixBalloon windows is too small to
figure it out, Is there a way to mkae the font bigger ?

Example:
% frame .f
% button .f.b -text aa -command "echo aa"
% set balloonHelp [tixBalloon .help_balloon]
% $balloonHelp bing .f.b1 -balloonmsg "Press will echo aa"
% pack .f.b1
% pack .f