Documentation
Package guides, integration guidance, API reference, runtime behavior, and styling documentation.
Resources
Theme Builder
Customize the public RXT Tracker CSS theme contract and export application overrides.
Recipes
Audio caption review
Review outstanding caption timing candidates across a zoomable horizontal audio timeline.
Activity stream
Navigate unresolved attention and critical events in a bounded live activity stream.
Long document
Navigate a long, structured report with stable semantic markers.
Extended form
Navigate validation errors and completion states in an extended form.
Scenarios
Rule resolution
See how rule priority, computed labels, and activation target resolvers determine marker behavior.
Styling contract
Compare equivalent public styling mechanisms and two unconventional page-level themes.
Marker clustering
See how nearby physical marker positions merge into clusters and split as the threshold changes.
Accessibility and keyboard navigation
Explore accessible rail naming, keyboard selection, activation, and the distinction between focus and Tracker selection.
Observation scope
Compare source-scoped mutation observation with explicit body targets.
Writing modes
Compare physical Tracker axes across representative CSS writing modes and directions.
React container
Bind a React Tracker to an external HTMLElement source and scroll root through DOM refs.
Vue container
Bind a Vue Tracker to an external HTMLElement source and scroll root through reactive DOM refs.
Angular container
Bind an Angular Tracker to an external HTMLElement source and scroll root through signal queries.
Vanilla in Shadow DOM
Render and observe a Vanilla Tracker entirely inside a user-managed ShadowRoot.
Element and Shadow DOM
Track sources inside an open ShadowRoot while the Element renderer remains in Light DOM.
Iframe document context
See how one parent-owned Vanilla Tracker mounts into same-origin iframe contexts across navigation.
Runtime events — Vanilla
Inspect public runtime events, lifecycle, and handler ownership through the Vanilla API.
Runtime events — Element
Inspect public runtime events and lifecycle through native Custom Events.
Runtime events — React
Inspect public runtime events, callback errors, and teardown through React props.
Runtime events — Vue
Inspect public runtime events, listener errors, and teardown through Vue emits.
Runtime events — Angular
Inspect public runtime events, output errors, and teardown through Angular outputs.
Diagnostics and failure boundaries
Compare recoverable diagnostics, retained stats, and synchronous failure boundaries.
Playgrounds
Vanilla playground
Explore complete configuration, events, rendering commands, and diagnostics through the imperative Vanilla API.
Element playground
Explore Custom Element properties, methods, and native event delivery.
React playground
Explore immutable React props, callbacks, and the limited ref handle.
Vue playground
Explore Vue replacement-driven props, emits, and the exposed handle.
Angular playground
Explore Angular signal inputs, outputs, and public component methods.