Pretext.Uno is the Uno-specific companion package. It no longer owns the platform-neutral layout helpers; those now live in Pretext.Layout.
Pretext.Uno depends on:
PretextPretext.LayoutPretext.DirectWritePretext.FreeTypePretext.CoreTextPretext.SkiaSharpAt runtime, Pretext then selects the best supported backend for the current OS.
The package exposes:
StretchScrollHostUiRenderSchedulerUse StretchScrollHost for sample-style scroll surfaces that need stretched content and viewport calculations. Use UiRenderScheduler when several UI events can trigger a redraw and you want one coalesced dispatch callback.
The wrap and obstacle helpers were extracted into Pretext.Layout, so non-Uno hosts can reuse:
PreparedTextMetricsColumnFlowLayoutObstacleLayoutHelper