This repository is the open-source 'Rainbow Brackets Lite' IntelliJ IDEA plugin, a free and feature-limited version of the popular Rainbow Brackets plugin. The plugin colorizes nested brackets (round, square, squiggly, angle) with distinct colors to improve code readability, and provides additional features like rainbow indent guide lines and scope highlighting via mouse shortcuts. It is implemented as a JetBrains plugin using the IntelliJ Platform SDK, with core logic split between an Annotator (for simple leaf-elements) and a HighlightVisitor (for more accurate per-language matching via BracePairProvider extension points). The architecture follows standard IntelliJ plugin patterns: extension points for brace providers, custom text attributes, and a thorough settings UI integrated into the IDE's color scheme page. The codebase is well-structured with proper separation of concerns, utility functions (memoization, color blending), and comprehensive tests for multiple languages. While tightly coupled to the IntelliJ API, several components (BracePairProvider interface, memoization utility, color blending) demonstrate non-obvious skill and could be extracted for reuse in other JetBrains plugins or JVM projects.