When using Yad, can a button be made the default?

Question

The title sets the question. If it can, what is the coding? Present coding is:- yad --center --on-top --text-align=center --buttons-layout=center --title ${0##*/} --width=150 --height=60 --text "Do you want tea?" --button=gtk-no:1 --button=gtk-yes:0 I want to make the yes button the default, so even if I just close the box the yes button is selected. Many thanks John

Answer 1

Found out that $? for Yes=0, for No=1 and Close=252, so coding externally allowed to make the Yes button the default. :-

if [[ $? == 0 || $? == 252 ]]
then
echo "Default"
else
echo "No"
fi

Answer 2

This snippet launch a default icon in the systray:

yad --notification xxx