User Interface Customization refers to the ability of users to modify the appearance and functionality of a software application or website. This can include changing themes, adjusting layouts, and selecting specific features that enhance user experience. Customization allows individuals to tailor their interactions based on personal preferences and needs. Many applications, such as mobile apps and web browsers, offer options for customization. Users can often choose colors, fonts, and icon sizes, or rearrange elements on the screen. This flexibility helps create a more comfortable and efficient environment, making it easier for users to navigate and utilize the software effectively.