The U and I Overlay principle is a design approach that involves the visual layering of elements to create dynamic, interactive interfaces. This technique is commonly used in both web design and mobile applications to enhance user experience and streamline content presentation.

"The overlay effect aims to blur the lines between functionality and aesthetics, creating a seamless flow of information."

In the context of digital media, an overlay typically refers to a semi-transparent layer placed above the main content. This method is widely used for:

  • Displaying additional information without disrupting the underlying content.
  • Creating visual emphasis on particular elements, such as calls-to-action.
  • Facilitating interaction through modal windows or notifications.

To better understand its application, here’s a comparison of different overlay types:

Overlay Type Purpose
Static Overlay Used for simple information display without interaction.
Interactive Overlay Engages the user with clickable elements or controls.
Modal Overlay Focuses user attention by blocking interaction with the background.