Hi Jean-Sébastien, Probably the code you are looking for can be found in app/paint-funcs/paint-funcs-generic.h. Also you might find it helpful to take a look at this bug report: http://bugzilla.gnome.org/show_bug.cgi?id=162395 Best, -- Bill ______________ ______________ ______________ ______________ Sent via the CNPRC Email system at primate.ucdavis.edu