Which tab in PowerPoint would you use to change slide design themes?

The Design tab in PowerPoint is specifically dedicated to slide design themes, making it the correct choice for this question. Within the Design tab, users can access a variety of pre-set themes and customize their presentations with different colors, fonts, and background styles. This functionality allows for a cohesive and professional look across all slides in a presentation.

The Home tab is primarily focused on basic editing and formatting tools, such as text formatting, slide arrangement, and basic layout options, but does not provide direct access to design themes. The View tab is utilized for adjusting how you view your presentation, such as slide sorting or notes viewing, while the Insert tab is used for adding various objects like images, tables, or charts, rather than changing the overall design theme. Therefore, the Design tab stays true to its purpose by enabling users to enhance the visual aspect of their slides through various themes and styles.