- The Layer panel keeps its own magnification and pan (`ui.layer_zoom`,
`ui.layer_pan`) with the Composition panel's magnification menu in its
footer; the wheel / pinch zooms around the pointer, the Hand tool,
Space-drag and a middle-drag pan, and the Zoom tool clicks zoom in
(Alt: out). Navigation never paints or makes Roto Brush strokes.
- View > Zoom In / Zoom Out / Fit / Actual Size act on the Layer panel
while it is focused, else on the Composition viewer as before.
- A Roto Brush click or drag in the Composition panel says the brush
works in the Layer panel; double-clicking a layer there with a Roto
Brush tool opens it in the Layer panel (as After Effects).
- Opening another layer resets the Layer panel to Fit.
Tests: crates/ui-egui/tests/ui_layer_panel_zoom.rs.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
