The big full-screen keymap overlay (ExpandedPianoWaveformView) now shows the same needle + rolling-buffer scope as the small popover (WaveformStripView) — a bright center playhead with chunky min/max columns marching outward — instead of the Metal VU bars. - WaveformStripView gains tintColor (voice family color; accent stays the popover default), an isLive capture gate, and drawsPlate=false so it embeds in the overlay's bezel/glass without stacking a second dark plate. - Gamepad button now opens a transient NSPopover anchored to it (scheme picker + controller status) instead of the inline bottom-right cluster; the toggle resyncs via popoverDidClose. - Wire KeymapCLI (--render-keymap) into main.swift (was defined but never invoked) and seed a synthetic note into the scope for the headless App Store keymap capture. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>