public string GetIconUrlString(Package package) { if (package == null) { throw new ArgumentNullException(nameof(package)); } var hasExternalIconUrlSpecified = !string.IsNullOrWhiteSpace(package.IconUrl); if (package.HasEmbeddedIcon || (_featureFlagService.IsForceFlatContainerIconsEnabled() && hasExternalIconUrlSpecified)) { // never fall back to iconUrl in this case return(GetIconUrlFromTemplate(package)); } else { if (!hasExternalIconUrlSpecified) { return(null); } return(package.IconUrl); } }