Input devices on Android operating systems can be visually customized, extending beyond the default system appearance. This customization often includes the ability to alter the palette of the on-screen keys, changing the background and foreground hues to suit individual preferences or visual needs. As an example, a user might opt for a dark background with light text for improved readability in low-light conditions.
The practice of altering an input device’s appearance enhances the user experience by allowing personalization and improved accessibility. Historically, limited customization options were available, but the development of Android has enabled a wide array of third-party applications providing extensive thematic control. This offers aesthetic benefits and practical advantages, such as improved visibility for users with visual impairments.