Hi Benoit, but I do not find wrong to give the choice at Gambas programmers with Ubuntu. Or at least insert Ron trick in documentation: (sed -i 's/tooltip_fg_color:#ffffff/tooltip_fg_color:#000000/g' /usr/share/themes/Ambiance/gtk-2.0/gtkrc sed -i 's/tooltip_bg_color:#000000/tooltip_bg_color:#ffffff/g' /usr/share/themes/Ambiance/gtk-2.0/gtkrc) Regards Gianluigi