src/vs/workbench/contrib/userDataSync/browser/userDataSync.ts/UserDataSyncWorkbenchContribution/updateAccountBadge
class UserDataSyncWorkbenchContribution:	private async updateAccountBadge(): Promise<void> {
		this.accountBadgeDisposable.clear();

		let badge: IBadge | undefined = undefined;

		if (this.userDataSyncService.status !== SyncStatus.Uninitialized && this.userDataSyncEnablementService.isEnabled() && this.userDataSyncWorkbenchService.accountStatus === AccountStatus.Unavailable) {
			badge = new NumberBadge(1, () => localize('sign in to sync', "Sign in to Sync Settings"));
		}

		if (badge) {
			this.accountBadgeDisposable.value = this.activityService.showAccountsActivity({ badge, clazz: undefined, priority: undefined });
		}
	}