Public API model

textcharts exports a single, clean API layer.

Chart classes and data models

The public surface is:

• Clean chart class names such as BarChart and Heatmap

• Data models such as BarData and LinePoint

• Shared configuration and helpers such as ChartOptions and ColorMode

This layer is concise, easy to document, and the right basis for external examples.

Performance-oriented surfaces

Most chart types are documented with general-purpose examples that transfer to domains such as retail, operations, education, and product analytics. NormalizedSpeedup is the clearest exception: it is intentionally aimed at benchmark and performance-analysis workflows.

ComparisonBar, DivergingBar, PercentileLadder, SummaryBox, and RankTable remain broadly useful, but they also overlap naturally with performance reporting.

Documentation strategy

The docs emphasize the chart classes and data models first, then list convenience factory helpers in reference sections.