Another one of the features available for Delenta Premium coaches, is the ability to customize the login page for their clients
Go to Settings & privacy, client onboarding customization and then brand client portal login
Add your logo, this will show when your clients log into their portal, you also have a unique link for your clients to sign into their portal with.
You can copy the link and share it with your clients, the link will also be displayed in the emails they receive.
As the coach, the logo added and branding and themes chosen by you will reflect across all your client accounts.