Merge PR #999

# Conflicts:
#	crates/pipeline/src/spots.rs
#	crates/ui-egui/src/tests_panels.rs
#	docs/parity-checklist.md
#	docs/ui-parity.md
#	docs/whats-new.md

crates/gpu/src/render.rs

@@ -754,6 +754,14 @@ pub fn render(
             lightcraft_pipeline::masks::evaluate_one(m, &plan.frame, w, h, &img, &l, s.light.exposure as f32, plan.mattes.as_deref())
         }
     });
+    // a sharpening view: the detail planes this render sharpened with
+    let overlay_mask = overlay_mask.or_else(|| {
+        req.overlay.reads_detail().then(|| {
+            let l = host.log_l.get_or_insert_with(|| Arc::new(cx.read_plane(&prep.log_l, w, h))).clone();
+            let tex = prep.texture.as_deref().map(|b| cx.read_plane(b, w, h));
+            lightcraft_pipeline::visualize::sharpen_plane(req.overlay, &plan.settings, &l, tex.as_ref(), plan.px_per_long)
+        })?
+    });
     lightcraft_pipeline::visualize::apply(&mut image, req.overlay, &plan, overlay_mask.as_ref());
     // spots grew the window the render worked on: cut it back to the request
     if let Some(k) = plan.keep {