A lens over a live MIDI control surface: position is identity, glyph class is
type, bar+hex is value, brightness is recency — zero English words on canvas.
Born watching a Novation Launch Control XL 3 in ParVagues' livecoding rig;
watches any ALSA MIDI source, three themes, optional spectrum backdrop and
Tidal HL feed, resting-state layer over an atomically-published driver state
file, branding overridable by env (MIDIVIZ_BRAND / _WORDMARK / _BRAND_SLUG /
_WAVE), headless selftest with PNG proof, GPL-3.0-or-later.