diff --git a/screenshots/01-sequencer-loop.png b/screenshots/01-sequencer-loop.png
new file mode 100644
index 0000000..6697279
Binary files /dev/null and b/screenshots/01-sequencer-loop.png differ
diff --git a/screenshots/02-mixer-automation.png b/screenshots/02-mixer-automation.png
new file mode 100644
index 0000000..b795471
Binary files /dev/null and b/screenshots/02-mixer-automation.png differ
diff --git a/screenshots/03-modular-graph.png b/screenshots/03-modular-graph.png
new file mode 100644
index 0000000..27a30bc
Binary files /dev/null and b/screenshots/03-modular-graph.png differ
diff --git a/screenshots/04-piano-roll-velocity.png b/screenshots/04-piano-roll-velocity.png
new file mode 100644
index 0000000..2126486
Binary files /dev/null and b/screenshots/04-piano-roll-velocity.png differ
diff --git a/screenshots/05-sequencer-audio-waveform.png b/screenshots/05-sequencer-audio-waveform.png
new file mode 100644
index 0000000..cc8f5c4
Binary files /dev/null and b/screenshots/05-sequencer-audio-waveform.png differ
diff --git a/screenshots/06-preferences-audio.png b/screenshots/06-preferences-audio.png
new file mode 100644
index 0000000..c0b2101
Binary files /dev/null and b/screenshots/06-preferences-audio.png differ
diff --git a/screenshots/07-preferences-plugins.png b/screenshots/07-preferences-plugins.png
new file mode 100644
index 0000000..2ea9269
Binary files /dev/null and b/screenshots/07-preferences-plugins.png differ
diff --git a/screenshots/08-preferences-interface.png b/screenshots/08-preferences-interface.png
new file mode 100644
index 0000000..76e751d
Binary files /dev/null and b/screenshots/08-preferences-interface.png differ
diff --git a/screenshots/09-preferences-editing.png b/screenshots/09-preferences-editing.png
new file mode 100644
index 0000000..5545ed5
Binary files /dev/null and b/screenshots/09-preferences-editing.png differ
diff --git a/screenshots/10-preferences-project_defaults.png b/screenshots/10-preferences-project_defaults.png
new file mode 100644
index 0000000..506147c
Binary files /dev/null and b/screenshots/10-preferences-project_defaults.png differ
diff --git a/screenshots/11-preferences-transport.png b/screenshots/11-preferences-transport.png
new file mode 100644
index 0000000..435e057
Binary files /dev/null and b/screenshots/11-preferences-transport.png differ
diff --git a/screenshots/12-plugin-library.png b/screenshots/12-plugin-library.png
new file mode 100644
index 0000000..777cce7
Binary files /dev/null and b/screenshots/12-plugin-library.png differ
diff --git a/screenshots/13-plugin-descriptors.png b/screenshots/13-plugin-descriptors.png
new file mode 100644
index 0000000..df16307
Binary files /dev/null and b/screenshots/13-plugin-descriptors.png differ
diff --git a/screenshots/14-plugin-controls.png b/screenshots/14-plugin-controls.png
new file mode 100644
index 0000000..ab5ea48
Binary files /dev/null and b/screenshots/14-plugin-controls.png differ
diff --git a/screenshots/15-midi-controller-mapping.png b/screenshots/15-midi-controller-mapping.png
new file mode 100644
index 0000000..afbcea6
Binary files /dev/null and b/screenshots/15-midi-controller-mapping.png differ
diff --git a/screenshots/16-loop-range.png b/screenshots/16-loop-range.png
new file mode 100644
index 0000000..007e4e3
Binary files /dev/null and b/screenshots/16-loop-range.png differ
diff --git a/screenshots/17-about.png b/screenshots/17-about.png
new file mode 100644
index 0000000..7ba2b14
Binary files /dev/null and b/screenshots/17-about.png differ
diff --git a/screenshots/18-audio-clip-properties.png b/screenshots/18-audio-clip-properties.png
new file mode 100644
index 0000000..8cbae9a
Binary files /dev/null and b/screenshots/18-audio-clip-properties.png differ
diff --git a/screenshots/19-clap-instrument-descriptors.png b/screenshots/19-clap-instrument-descriptors.png
new file mode 100644
index 0000000..a4a5c6b
Binary files /dev/null and b/screenshots/19-clap-instrument-descriptors.png differ
diff --git a/screenshots/20-vst2-instrument-descriptors.png b/screenshots/20-vst2-instrument-descriptors.png
new file mode 100644
index 0000000..e4fa344
Binary files /dev/null and b/screenshots/20-vst2-instrument-descriptors.png differ
diff --git a/screenshots/21-vst3-instrument-descriptors.png b/screenshots/21-vst3-instrument-descriptors.png
new file mode 100644
index 0000000..d2c5d17
Binary files /dev/null and b/screenshots/21-vst3-instrument-descriptors.png differ
diff --git a/screenshots/README.md b/screenshots/README.md
new file mode 100644
index 0000000..1527ffc
--- /dev/null
+++ b/screenshots/README.md
@@ -0,0 +1,35 @@
+# xtc screenshots
+
+Captured from the Phase 35 FLTK application on 2026-10-28, using a virtual X11
+screen. Images show actual rendered widgets, without mockups or image edits.
+
+[View the contact sheet](overview.png).
+
+The arrangement uses `examples/projects/modern-session.xtc`. The audio view adds
+a temporary generated waveform. Mixer automation and loop selections are staged
+for these captures. Plugin views use the repository's LADSPA, CLAP, VST2 and
+VST3 test fixtures; these are demonstration plugins, not commercial instruments.
+Preferences show application defaults and the staged loop. No user configuration
+or example project was overwritten.
+
+- [Sequencer loop](01-sequencer-loop.png)
+- [Mixer automation](02-mixer-automation.png)
+- [Modular graph](03-modular-graph.png)
+- [Piano roll velocity](04-piano-roll-velocity.png)
+- [Sequencer audio waveform](05-sequencer-audio-waveform.png)
+- [Preferences audio](06-preferences-audio.png)
+- [Preferences plugins](07-preferences-plugins.png)
+- [Preferences interface](08-preferences-interface.png)
+- [Preferences editing](09-preferences-editing.png)
+- [Preferences project defaults](10-preferences-project_defaults.png)
+- [Preferences transport](11-preferences-transport.png)
+- [Plugin library](12-plugin-library.png)
+- [Plugin descriptors](13-plugin-descriptors.png)
+- [Plugin controls](14-plugin-controls.png)
+- [Midi controller mapping](15-midi-controller-mapping.png)
+- [Loop range](16-loop-range.png)
+- [About](17-about.png)
+- [Audio clip properties](18-audio-clip-properties.png)
+- [Clap instrument descriptors](19-clap-instrument-descriptors.png)
+- [Vst2 instrument descriptors](20-vst2-instrument-descriptors.png)
+- [Vst3 instrument descriptors](21-vst3-instrument-descriptors.png)
diff --git a/screenshots/overview.png b/screenshots/overview.png
new file mode 100644
index 0000000..e85625b
Binary files /dev/null and b/screenshots/overview.png differ