{Joseph Wright} {Templates: Prototype document elements} {Controlling design is something that has been challenging in \LaTeX\ to date. While the \LaTeX\ Team developed experimental ideas in the mid-1990s for creating flexible design elements, they were not viable for real documents then. These ideas, based around 'templates', have now reached maturity and are included in the Summer 2024 \LaTeX\ kernel release. In this talk, I will look at what a template is, why we'd want to use them and the flexibility and power they will bring to controlling document design.}