Upgrading from 0.1

0.2 moves the code every language shares out of the Mermaid and Graphviz namespaces (all under Janalis\Viz\):

0.1	0.2
Diagram\Graph, Node, Edge, Cluster, Shape, ArrowHead	Model\Graph\Graph, Node, Edge, Cluster, Shape, ArrowHead
Diagram\Direction, Diagram\LineStyle	Model\Direction, Model\LineStyle
Mermaid\MermaidMark	Draw\Mark, its kind a Draw\MarkKind
Mermaid\MermaidDrawing	Draw\Drawing; its scene() and graph() are Mermaid\MermaidPainter
Mermaid\MermaidSvg, MermaidPng, MermaidPdf, MermaidRuns	Draw\SvgBackend, PngBackend, PdfBackend, Runs
Mermaid\MermaidSketch, MermaidRough, MermaidRoughRandom	Draw\Sketch\Sketch, Rough, RoughRandom
Mermaid\MermaidCurve, MermaidCurves, MermaidCurvePath, MermaidSplines, MermaidPolyline	Layout\Curve\Curve, Curves, CurvePath, Splines, Polyline
Mermaid\MermaidRanks, RankedBoxes, CompoundGraphPlacement	Layout\Ranked\Ranks, RankedBoxes, RankedEngine
Mermaid\MermaidFont, MermaidFontCoverage, MermaidFallbackFonts, MermaidWrap; Layout\GraphFont	Text\Font, FontCoverage, FallbackFonts, Wrap; Text\FontFace
Mermaid\CssColorNames, GraphViz\DotColor	Color\CssColorNames, Color\ColorValue
Mermaid\MermaidRenderer, MermaidPipeline::export()	Draw\NativeRenderer, NativeRenderer::image()
Mermaid\MmdcRenderer, PlantUML\PlantUmlRenderer, GraphViz\DotRenderer::render()	Process\CommandRenderer with Mermaid\MermaidCommand, PlantUML\PlantUmlCommand, GraphViz\DotCommand
GraphViz\DotRenderer	GraphViz\DotTool (json(), layout())

Viz takes a fifth argument, engine: Engine::Auto|Native|Cli; Graphviz and PlantUML are drawn natively first, as Mermaid was. The converter reads and writes each family's shared model, so a diagram converts without being flattened to a graph where the target language has its family.