Implements variable highlighting in algorithm descriptions by clicking on <var> elements to highlight all instances with color-coded tracking. Uses smart color allocation algorithm to minimize collisions and works within scoped algorithm containers. Zero dependencies, highly reusable in any documentation system needing code variable tracking.

Exports pure functions for image processing filters including grayscale (using proper luminance coefficients) and brighten. Designed for use in Web Workers with ImageData objects. Self-contained with no dependencies, demonstrating correct implementation of color space transformations. Easily extractable for any image processing pipeline.

Find-as-you-type search implementation with JSON-backed index, keyboard navigation (up/down arrows), mouse interactions, and click-to-focus handling. Efficiently filters results using regex and limits display count. Self-contained logic that only requires an external search-index.json file with specific structure, making it highly adaptable for documentation sites.

Creates interactive definition panels that show where terms are referenced throughout the specification. Handles both single-page and multipage versions, loads cross-references from JSON, manages panel state with activation tracking, and supports history navigation. Demonstrates sophisticated DOM manipulation and state management for documentation systems.