diff --git a/docs/nesting-view-colors.md b/docs/nesting-view-colors.md
index 1e6cb933..bd3fe607 100644
--- a/docs/nesting-view-colors.md
+++ b/docs/nesting-view-colors.md
@@ -73,7 +73,11 @@ apps. WinForms draws with per-thread GDI+ pens from `GdiSchemeTools`; the Avalon
 plate canvas draws with Skia colours from `SkiaSchemePalette`. The Avalonia app
 applies the scheme saved as `ActiveColorScheme` in the shared user-settings file
 when it starts, and recolors a nest's drawings when it opens one; it has no
-Options screen to change the scheme yet.
+Options screen to change the scheme yet. Its plate canvas builds part paths from
+`OpenNest.Desktop.Rendering` (a port of the WinForms `GraphicsHelper` layer routing:
+etches stroked apart from cuts, tabs filled but not cut, break cuts never filled), so
+the etch, cut and fill rules above hold there too; WinForms still draws with
+`GraphicsHelper`.
 
 ## Verification