Development
On this page Principles New navigation Audit Overlaps
Documentation structure
This note records the September 2026 audit of docs/ and the navigation that
replaced the earlier sidebar. The earlier navigation listed about 110 pages in
eleven top-level groups. Engine studies, release gates, research previews and
worked examples were listed next to the user guides, while the dense figure
page, measured layout and the newer plot types had no entry of their own.
Principles
The sidebar holds pages that a figure author reads to do something. Engine
measurements, release process, design notes and before/after reviews move to
a single development notes index.
Every top-level section except Get started and Reference opens with an
overview page of image cards. Plots uses the plot-type gallery for this, and
Gallery uses the figure gallery.
No Markdown file is renamed or deleted, because Read the Docs URLs and
external links depend on them. Pages that leave the sidebar stay built and
searchable. extra.unlisted in mkdocs.yml assigns each of them to the
section that the sidebar opens and that search reports.
Worked examples of an experimental API stay together under Experimental .
Its overview links to every one of them.
New navigation
Section
Pages in sidebar
Overview page
Pages reached from the overview only
Overview
1
index.md (home template)
0
Get started
4
none, the pages form one sequence
0
Plots
13
plot-types.md (plot gallery)
0
Figures and layout
7
figures.md (new)
0
Diagrams
3
diagrams-overview.md (new)
1
3D and images
7
three-d.md (new)
2
Export and review
3
export.md (new)
0
Gallery
5
examples.md (figure gallery)
11
Reference
6
none, the pages are self-describing
0
Experimental
11
experimental.md (new)
21
Development
3
development.md (new)
17
The nine user-facing sections list 49 pages. Experimental and Development
sit below a separate sidebar label and add 14 more.
Audit
Columns: lines of Markdown, the number of other pages that link to the file
(inbound), the category, and what happens to the page.
Categories: guide (core user guide), how-to (task recipe or tutorial),
ref (reference), show (showcase or gallery), exp (experimental or
preview API), int (internal: history, engine study, design, release
process, research study, before/after review).
Get started
Page
Lines
In
Class
Action
index.md
44
0
guide
Keep as home. Rewritten task table; home template now features the dense figure, the new plot types and measured layout.
installation.md
154
17
guide
Keep in Get started .
quickstart.md
128
7
how-to
Keep in Get started .
csv-figure.md
125
5
how-to
Keep in Get started .
concepts.md
147
6
guide
Keep in Get started .
Plots
Page
Lines
In
Class
Action
plot-types.md
28
10
show
Keep as the Plots overview. The gallery is now grouped by family with a heading, guide link and summary per family.
plotting.md
142
3
guide
Keep.
lines-and-points.md
257
1
guide
Keep; renamed in nav only. Body untouched (concurrent edits).
bars-and-areas.md
240
1
guide
Keep. Body untouched (concurrent edits).
distributions.md
245
1
guide
Keep. Body untouched (concurrent edits).
uncertainty.md
129
1
guide
Keep.
matrices.md
254
3
guide
Keep; nav label now mentions dendrograms. Body untouched.
polar-plots.md
164
1
guide
Keep; nav label now mentions radar and pie. Body untouched.
axes-and-scales.md
88
11
guide
Keep.
data.md
172
13
guide
Keep.
dense-data.md
74
7
guide
Keep.
plot-recipes.md
147
6
how-to
Keep.
publication-plots.md
103
4
how-to
Keep; nav label "Insets and shared categories" says what it covers.
Page
Lines
In
Class
Action
figures.md
new
–
guide
New section overview with cards.
dense-figures.md
new
–
show
New page for examples/dense_figure.py: panel-by-panel list of the calls, the grid, the preset and the lint result. Previously the figure was only an image at the end of presets.md#dense-pages.
layout.md
137
17
guide
Keep, nav label "Panel layout in millimetres". Body untouched (concurrent edits).
presets.md
233
1
guide
Moved here from the old Whole figures list; linked from Reference overview text.
composition-recipes.md
171
10
how-to
Keep.
complex-figures.md
117
3
how-to
Keep.
scientific-authoring.md
361
3
how-to
Keep.
project-workflows.md
189
11
exp
Move to Experimental ; the home page already tagged it experimental.
layout-overrides.md
193
6
exp
Move to Experimental (opt-in API).
layout-editor.md
340
7
exp
Move to Experimental (opt-in API).
Diagrams
Page
Lines
In
Class
Action
diagrams-overview.md
new
–
guide
New overview, including where diagrams and plots share a page.
diagrams.md
103
5
guide
Keep.
diagram-components.md
29
1
ref
Keep.
diagram-engine.md
135
1
int
Out of sidebar: a before/after engine review. Still the target of the gallery card; linked from the Diagrams overview and development notes.
3D and images
Page
Lines
In
Class
Action
three-d.md
new
–
guide
New overview with cards.
three-images.md
96
5
guide
Keep.
blender-scenes.md
302
11
guide
Keep.
scene-annotations.md
140
5
guide
Keep.
scene-paths.md
125
6
guide
Keep.
scene-templates.md
123
4
guide
Keep.
render-jobs.md
138
10
guide
Keep.
scientific-scenes.md
95
3
how-to
Out of sidebar, card on the 3D overview and in the figure gallery.
open-anatomy.md
130
3
how-to
Out of sidebar, card on the 3D overview.
complex-scene.md
59
4
show
Out of sidebar, in the figure gallery; section Gallery .
Export and review
Page
Lines
In
Class
Action
export.md
new
–
guide
New overview: vector export, diagnostics and lint, review bundles, revision comparison, viewer.
export-review.md
154
9
guide
Moved out of Whole figures into its own section.
compiled-viewer.md
303
11
guide
Moved from Interactive documents : it is a stable viewer for compiled figures.
Gallery
Page
Lines
In
Class
Action
examples.md
18
14
show
Keep as the Gallery overview.
scientific-gallery.md
106
3
show
Keep.
showcase.md
62
11
show
Keep; now lists its eight recipe pages.
stress20.md
77
7
show
Keep.
example-library.md
123
1
show
Keep.
general-plots.md
82
3
show
Out of sidebar; figure gallery card.
biology-panels.md
72
2
show
Out of sidebar (was under Microscopy, but it is a plot figure); figure gallery card.
recipes/*.md (8)
26–28
0–1
show
Out of sidebar; figure gallery cards and the list in showcase.md.
Reference
Page
Lines
In
Class
Action
api.md
1377
11
ref
Keep (generated).
cli.md
99
4
ref
Keep.
cookbook.md
2860
2
ref
Moved from Examples : a lookup of direct-drawing recipes.
compatibility.md
152
11
ref
Keep.
migration.md
287
6
ref
Keep.
troubleshooting.md
95
4
ref
Keep.
Experimental
Page
Lines
In
Class
Action
experimental.md
new
–
exp
New overview linking every experimental guide and worked example.
interactive-documents.md
83
3
exp
Keep in sidebar.
linked-plots.md
121
7
exp
Keep in sidebar.
linked-facets.md
135
4
exp
Keep in sidebar. Body untouched (concurrent edits).
linked-maps.md
172
6
exp
Keep in sidebar.
data-revisions.md
221
9
exp
Keep in sidebar.
project-workflows.md, layout-overrides.md, layout-editor.md
exp
See Figures and layout .
calibrated-volumes.md
111
6
exp
Keep in sidebar as the microscopy entry point.
research-preview.md
236
5
exp
Keep in sidebar.
table-inputs.md
143
6
exp
Out of sidebar; overview card.
time-series.md
162
5
exp
Out of sidebar; overview card.
statistical-views.md
131
3
exp
Out of sidebar; overview card.
geographic-features.md
116
2
exp
Out of sidebar; overview card.
visual-editing.md
107
4
exp
Out of sidebar; overview card.
regional-report.md, world-map.md, engineering-report.md, scientific-report.md, mesh-fields.md, contours-streamlines.md
95–186
1–5
exp
Out of sidebar; overview cards under "Complete reports".
oblique-sections.md, slabs-and-regions.md, channels-and-contours.md, label-measurements.md, microscopy-tiff.md
76–134
1–3
exp
Out of sidebar; overview cards under "Microscopy".
real-biology.md, oblique-biology.md, slab-biology.md, fluorescence-biology.md, label-intensities.md
77–115
2–7
exp
Out of sidebar; overview cards under "Microscopy examples".
Development (internal)
Page
Lines
In
Class
Action
development.md
new
–
int
New index of internal material; absorbs the table from history.md.
history.md
36
3
int
Retired into development.md; kept with a pointer note, out of sidebar.
development-preview.md
59
22
int
Out of sidebar: 4.0 release notes at a historical URL.
roadmap.md
82
11
int
Out of sidebar.
acceptance.md
108
4
int
Out of sidebar; still indexed by search.
release-checks.md
155
4
int
Out of sidebar.
brand.md
27
0
int
Out of sidebar; linked from the footer.
rendering-engine.md
223
5
int
Out of sidebar (engine study).
plot-quality.md
52
2
int
Out of sidebar (before/after review).
compositing.md, hatching.md, clipping.md
109–117
3
int
Out of sidebar (engine studies).
compiled-scenes.md
155
2
int
Out of sidebar (development revision record).
marker-batches.md, marker-culling.md
134–176
1–4
int
Out of sidebar (engine studies).
design/v2.md
84
5
int
Out of sidebar (design contract).
design/capability-gaps.md
143
0
int
Out of sidebar (design note). Body untouched (concurrent edits).
design/docs-structure.md
new
–
int
This page.
v2.md, v2.5.md, v3.md, v4-foundations.md, browser-rendering.md, plotting-engine.md, research-study.md, research-revision.md, design/v4.md, design/browser-backends.md, design/page_grid.md
105–237
1–5
int
Already archived and out of sidebar; unchanged, excluded from search.
Overlaps
Pages
Overlap
Resolution
history.md, new development.md
Both index internal material.
development.md holds the full list, history.md points to it.
presets.md#dense-pages, new dense-figures.md
Both describe the dense page.
presets.md keeps the settings table; dense-figures.md explains the figure and links back.
examples.md, showcase.md, scientific-gallery.md, example-library.md
Four gallery-like pages.
examples.md is the one gallery; the others are detail pages below it.
diagram-engine.md, diagrams.md
Both show measured modules and routing.
diagrams.md is the guide; the review leaves the sidebar.
compiled-scenes.md, compiled-viewer.md
Same feature; one is its dev record.
Viewer in Export and review ; record in development notes.
dense-data.md, marker-batches.md, marker-culling.md, rendering-engine.md
Guide versus measurements.
Guide stays; measurements in development notes.
interactive-documents.md, experimental.md
Both route to experimental pages.
interactive-documents.md chooses between viewer, editor and report workflows; experimental.md lists every experimental page.
*-biology.md versus microscopy guides
Example versus API guide pairs.
Kept separate, grouped on the Experimental overview.