Which design aspect directly affects user engagement?

The design aspect that directly affects user engagement is the layout. A well-thought-out layout organizes content in a way that guides the user's eye and attention, making it easier for them to navigate and absorb information. Good layout practices contribute to the overall usability of a design by ensuring that elements such as text, images, and buttons are positioned strategically. This organization helps users quickly find what they are looking for and is essential for creating a positive user experience, which in turn boosts engagement.

While font size, color choice, and texture play important roles in the overall aesthetic and readability of a design, they do so within the context set by the layout. For example, an engaging color scheme can attract attention, and appropriate font size enhances readability, but these elements must be placed effectively in a layout to maximize impact. The layout serves as the framework that integrates all design aspects, making it the primary determinant of user engagement.