There is work being done on this, to see the status check out https://discourse.ubuntu.com/t/a-quick-update-on-our-progress-on-automatic-theme-installation-for-snaps/18633
There is work being done on this, to see the status check out https:/ /discourse. ubuntu. com/t/a- quick-update- on-our- progress- on-automatic- theme-installat ion-for- snaps/18633