These are typically 2D illustrations with a transparent background that "react" to the creator's voice, blinking or moving their mouth while they speak.
Depending on the context where you saw the name, it could also refer to: LittleLi4.PNG
The name doesn't appear to be a famous or viral image on its own, but it most likely refers to a PNGTuber model —a common tool used by content creators who want to stream without showing their real face. What is a "Little PNG" Character? These are typically 2D illustrations with a transparent
They are a popular, budget-friendly alternative to complex 3D VTuber models, allowing artists to showcase their OC (Original Character) designs. LittleLi4.PNG
In web development, software like Sparkle often generates small "little .png" files for website icons and device compatibility.