vein
Poured paint, cut flat. A smooth stripy field is sliced at evenly spaced levels. Each level is the outline of everything at or above it, filled as one shape over the levels below, so the sheet reads as stacked layers of marbled paint. The lowest levels are a dark ground, and stars sit on that ground only.
vein renders a Still: one frame. Its site page is playgrnd.tools/vein.

Seed 3, rendered by:
tirage derive --seed 3 --tool vein | tirage render --size 540x960 -o vein.pngParameters
Section titled “Parameters”As tirage tools lists them, each with its range and step, or its choices:
vein 1 frame flows Marble, Swirl, Ripple scale 0..=1 step 0.01 curve 0..=1 step 0.01 levels 3..=14 step 1 tiger 0..=1 step 0.01 edges 0..=1 step 0.01 stars 0..=1 step 0.01 tints 0..=1 step 0.01 runs 0..=1 step 0.01 ditherTog on/off dthKinds Bayer 8, Bayer 4, Noise dthSize 1..=10 step 1 dthLevels 2..=8 step 1 dthAmount 0..=1 step 0.05 grainTog on/off grnBlends Add, Overlay, Soft light, Multiply, Screen grnAmount 0..=1 step 0.05 grnSize 0.5..=4 step 0.1 grnSpecks 0..=1 step 0.05 grnVignette 0..=1 step 0.05A Seed draws flows, scale, curve, levels, tiger, edges, stars, tints and runs. Each range comes from its Taste bounds, which sit within the range listed. Grain stays on, as the site page opens: Overlay at 0.4, size 1, specks 0.4, vignette 0.25. Dither stays off.