FusionAuth has introduced a new feature called "Login Theme," which offers users the ability to customize the appearance of their login pages, including related pages such as forgot password and two-factor authentication. To assist users in utilizing this feature, FusionAuth has provided a comprehensive tutorial and an in-depth video demonstration that guides users through replicating Stack Overflow’s login page using FusionAuth. The company invites feedback on the feature, tutorial, and video, and offers support for those needing help in creating their login theme.