Toolchain Demos

Reference pages exercising every diagram / plot pipeline wired into the pccx Sphinx build. They exist so any regression in the toolchain surfaces as a visible break on a dedicated page rather than inside a real architecture chapter.

• Mermaid — NPU block diagram
• WaveDrom — AXI4 read transaction
• SVG — themed 4×4 PE array
• scienceplots — bandwidth vs batch size
• Plot gallery

Coverage matrix.

Demo	Pipeline under test	Theme-aware?
Mermaid — NPU block diagram	sphinxcontrib-mermaid	✓ (neutral)
WaveDrom — AXI4 read transaction	sphinxcontrib-wavedrom	— (raster)
SVG — themed 4×4 PE array	Inline SVG + Furo CSS vars	✓
scienceplots — bandwidth vs batch size	scienceplots + sphinx-gallery	✓ (palette)

See CLAUDE.md §5 (Diagram Authoring Rules) and §6 (Plotting Conventions) for the authoring conventions these pages are meant to demonstrate.