In most cases, a refers to a tool used to preview Samsung's proprietary image format ( .qmg ) used for boot and shutdown animations on Galaxy devices.
Title: Understanding the QMG Format: How to View and Create Custom Boot Animations qmg viewer
: Instantly extracts the compiled proprietary file back into clean, chronologically numbered PNG sequences (e.g., frame01.png , frame02.png ) optimized to the device's native resolution. QMG viewer In most cases, a refers to
