Modular user interface for video transmission system

In some embodiments, a method selects context information for a user account and selects a plurality of sets for an interface. The set includes a set of videos. The method selects a topic from a plurality of topics for a set of the plurality of sets based on the context information. The plurality of topics apply different display formats for the set. The method sends an identifier of the topic and information of the sets to a client device being used by the user account to indicate the topic for displaying the sets to an interface having a plurality of sets. 在一些实施例中，一种方法选择用户账户的背景信息，并选择用于界面的多个集合。集合包括一组视频。该方法基于背景信息为多个集合中的一个集合从多个主题中选择一个主题。多个主题为集合应用不同的显示格式。该方法向用户账户正在使用的客户端设备发送主题的标识符和集合的信息，以向具有多个集合的界面指示用于显示集合的主题。