persistable sclass G22MasksPanel extends G22CRUDAndDetailPanel<G22MaskConcept> {
  SimpleCRUD_v2<G22MaskConcept> makeCRUD() {
    var crud = new SimpleCRUD_v2<>(g22utils.concepts(), G22MaskConcept);
    crud.excludeFieldsFromEditing("maskImage");
    crud.entityName = -> "Mask";
    ret crud;
  }

  JComponent makeDetailView(G22MaskConcept mask) {
    ret g22utils.stdImageSurface(mask.maskImage);
  }
  
  selfType g22utils(G22Utils g22utils) { super.g22utils(g22utils); this; }
}

Began life as a copy of #1036104