How does Hisense's mobile phone show its skin and send text messages by phone?

Thank you for your support of Hisense mobile phone! The interface of SMS is the default and cannot be changed; Call the interface to set their photos according to the contacts. The setting method is as follows: you need to save the phone number of the contact on the phone-click on a contact-edit-click on the logo with a picture on the right side of the contact name-select the photo setting of the contact from the gallery. Thank you!