Depending on the context where you saw the name, it could also refer to:
There is a Little PNG Shop that sells island-style apparel and products.
These are typically 2D illustrations with a transparent background that "react" to the creator's voice, blinking or moving their mouth while they speak.
Where did you come across the filename "LittleLi4.PNG"—was it on a or a social media art post ?
"Little PNG" is frequently used on social media to describe children or cultural stories from Papua New Guinea (PNG) , such as the inspiring story of Yalinu Poya , who grew up in the country and became a world-renowned chemist.
Many artists share these models on platforms like Instagram and TikTok to announce new streaming setups or take commissions. Other Possible Meanings
They are a popular, budget-friendly alternative to complex 3D VTuber models, allowing artists to showcase their OC (Original Character) designs.