Convert PNG ANIMATED to UIL

Animated PNG is a file extension for animated raster graphics. Developed as an extension of the Portable Network Graphics (PNG) format, Animated PNG allows for animation while maintaining PNG's lossless compression and transparency features. Introduced by Mozilla in 2004, it initially garnered limited support but gained traction for its compatibility and efficiency. Animated PNG is ideal for web usage, offering animation without the substantial file size of GIFs, making it suitable for high-quality web animations and UI elements.

The UIL file extension stands for User Interface Language and is associated with the X-Motif UIL Table. It is a plain text file format used by the UIL compiler to create user interfaces for the X Window System. UIL files define menus, buttons, dialog boxes, and other graphical user interface components. Introduced by The Open Group, this format allows developers to describe the initial state of a user interface, including widgets, resources, and callbacks. The UIL file is compiled into a UID file, which can be accessed by Motif Resource Management functions within an application.