The warp mesh — colour by angle around the deposit

Param	Default	What it does
color_span	1.0	How much of the gradient one full turn around the deposit centre covers. 1.0 is the whole ramp once per revolution; low values give a near-single-tone ring.
color_center	0.0	Where that sweep starts in the gradient. Cyclic, exactly as on the field scenes — -0.1 and 0.9 are the same place.

The deposit — the scene’s light source, a gaussian ring — samples the LUT per pixel in its fragment stage, so the full surface applies here: [palette], [palette_b], palette_mix, saturation, and both palette_steps and palette_contour are live (see the scoping table below). The coordinate is

hue + color_center + color_span * (angle / tau)

where angle is measured about the deposit centre (deposit_x/deposit_y), so the ring is laid down as an angular sweep through your gradient. What makes this scene’s colour behave unlike any other: the warp then drags that colour into structure, so most of what is on screen at any moment is the palette’s history — a decay near 1 keeps many seconds of old sweep in flight, and a moving color_center paints time as a spiral of shifting tone.

A converted MilkDrop preset is outside this surface by design. A preset carrying a [milk] table switches the deposit off and draws its own light — the waveform, custom waves and shapes coloured by the .milk file’s own authored wave_r/_g/_b values. The palette params above govern the native, hand-authored warp_mesh look; they do not re-tint an imported one.

---