Pick a song with keys notation (sloppak-spec §5.3) and choose Keys Highway 3D from the viz picker (Auto selects it for notation charts). The plugin auto-attaches to your MIDI keyboard; device, channel and transpose are configured from the player for now — this panel holds the graphics controls.
Background gradient, floor and lane rails — the same theme names as the guitar highway. Pitch-class note colours never change.
Dimmer ambience, stronger key light — deeper shading on the keys and gems.
How hard the notes, key glow and sustain consume-flash self-illuminate (0.5 = stock). Pairs with bloom.
The backdrop pulses with the mix (stems analyser when a sloppak is loaded). Off = it animates on time only.
+1 pops on scored presses, a ring pulse every 10-combo, milestone bursts at 25/50/100, and a brief red flicker when a streak breaks.
Soft light-bleed around the hit line, hit flames and consumed sustains. Applies live; turn off to reclaim GPU headroom on weak machines.
A small particle burst on every scored key press, beside the pitch-colored flame.
Tint the sparks by timing — on-time green, early cyan, late amber. Off = always green.
Spark bursts grow with your combo.
Drives the hit-line brightness kick on scored presses. 0 turns it off.
Note-gem solidity and lane-guide strength — lower to see more of the keyboard through the notes.