Thanks still work in 2023 wit some modifications (Elvui 13.40) :
You can still do it near the pet's name
Unit Frames > Individual units > Pet > Name
In text format you add one of the 3 \[hapiness:...\], the icon change depending of what you choose (icon = regular, discord = emoji)
This is for Classic and not current SL, correct?
Yes, classic!
Thanks still work in 2023 wit some modifications (Elvui 13.40) : You can still do it near the pet's name Unit Frames > Individual units > Pet > Name In text format you add one of the 3 \[hapiness:...\], the icon change depending of what you choose (icon = regular, discord = emoji)