OT: icon problem

[Jack <ostroffjh users sourceforge net>]

This is not a Balsa issue, but probably some underlying gtk icon  
issue.  The icons for adjusting the relative position of panes GtkPaned  
?) have the vertical and horizontal icons swapped.  For example, I use  
the default layout with preview pane.  If I try to adjust the relative  
height of the message list and preview pane, the icon for grabbing the  
separator is two vertical bars with arrows to the right and left.  If I  
try to adjust the relative size of the mailbox list (left) and the  
message list and preview pane (right) the icon is two horizontal bars  
and arrows pointing up and down.  I see the same problem in the gentoo  
file browser (application by that name, having nothing to do with the  
Gentoo distro.)  I've hunted through every gtk3 them and icon I can  
find, and cannot find those icons.  Does anyone know where they come  
from?  Are they build into gtk3?  It's not really imporant, but it's  
starting to drive me crazy that I can't find where they are coming from.

Thanks for any suggestions.

Jack