Vega-Lite is a high-level grammar for visual analysis, enabling rapid specification of interactive data visualizations. It provides a concise JSON syntax to describe charts, which are then compiled into lower-level Vega specifications. Vega-Lite emphasizes defaults for visual encoding to reduce boilerplate and simplify design. It supports declarative interaction grammars for selections and transformations, making interactive exploration more intuitive. This package provides the core Vega-Lite library for JavaScript environments.