seems self explanatory, we can set 1 single icon, but no entity_picture in the UI, and now need customize in yaml for that.
Please consider adding this very useful option to make HA shine non the Frontend even more!
Also, if the on/off icon WTH would be accepted, please consider allowing the same for image. on/off. home/not_home, 0/+0, too many situation that would benefit from this.