Canvas and Decal (FusionAddCanvasCommand, FusionAddEditDecalCommand): PNG/JPEG reference images stored in the design (base64), placed on an origin/construction plane, a sketch plane or a planar face; canvas.edit (position, width, angle, opacity, flip, visibility), canvas.calibrate (scale by a known distance), canvas.delete; drawn textured in the viewport; toolbar tools pick the file, then the plane or face

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01AS5Tn3xieewUSg3uxrMVdL

crates/ui-egui/src/viewport.rs

@@ -1070,6 +1070,7 @@ pub fn show(app: &mut SolveApp, ui: &mut egui::Ui) {
     } else {
         app.viewport.boxsel = None;
     }
+    crate::ref_images::show(app, ui, &painter, &proj);
     overlays(app, &painter, &proj);
     crate::dim_view::show(app, ui, &painter, &proj);
     hover_highlight(app, &painter, &proj);