{"params":{"colorway":{"type":"choice","default":"regolith-rust","label":"Colorway","describe":"curated kit-coherent colour for the mark \u2014 the decal is one material, so a colorway is one hex, and the choice is really \"what am I dropping this on\". regolith-rust = the default dark rust, roughly two value steps below the kit terrain rust, so it reads as churned subsoil on warm regolith; pale-dust = a softer mid-brown for a faded old track that has half blown over, or for pale bleached ground where the default reads too harsh; basalt-dark = a near-black churn, the strongest contrast in the set, for light ground and for store-thumbnail legibility; pale-grey = a LIGHT track for dark ground (volcanic rock, shadowed ice, plating), where a dark mark would vanish. Geometry is identical in every colorway","options":["regolith-rust","pale-dust","basalt-dark","pale-grey"]},"rut":{"type":"color","default":"#5b4337","label":"Rut","describe":"albedo of the ENTIRE mark \u2014 the centre ribs and every chevron lug arm, all one material, dust compacted under a wheel. This is the only colour the asset has and it does all the identity work, because the decal owns no surface of its own: the tread pattern is read as this colour against whatever host shows through between the arms. Size it by VALUE against that host, not by hue \u2014 a step of about 20% of the host luminance is the minimum that still reads at 10 m, and darker or lighter both work"},"gauge":{"type":"range","default":0.74,"label":"Track gauge","describe":"distance between the two bands' centrelines, i.e. how wide apart the rover's wheels were. 0.58 is a narrow-gauge scout buggy whose two tracks nearly touch and read almost as one wide band; 0.74 is the default and matches the kit rover; 0.92 is a broad wide-stance hauler with a generous run of open host surface between the tracks. Nothing is modelled between the bands, so this knob changes how much of the consumer's own ground shows through the middle; the 4 m length and the flush chaining ends never move","affects":"geometry","min":0.58,"max":0.92},"treadWidth":{"type":"range","default":0.38,"label":"Tread width","describe":"width of each band, i.e. how fat the tyres were. 0.28 is a slim hard-tyre track whose chevron arms are short and stubby; 0.38 is the default balloon-tyre track; 0.48 is a wide flotation tyre with long sweeping arms that make the herringbone the dominant read. The lug arms always span from the centre rib out to the full tread edge, so this sets the arm LENGTH, and the rib scales with it so the proportion of rib to arm holds at every value","affects":"geometry","min":0.28,"max":0.48},"lugs":{"type":"range","default":13,"label":"Lug rungs","describe":"how many chevron rungs each band carries over the 4 m length, so how coarse or fine the tread print is. 8 gives a 0.50 m pitch of big widely-spaced blocks like an aggressive rock-crawler tyre with a lot of host surface between them; 13 is the default 0.31 m pitch; 16 gives a 0.25 m pitch of tighter ribs reading as a smaller, faster wheel. Rungs are always phased half a pitch in from each end, so the gap across a butted clone joint equals the gap inside the piece and any value still chains seamlessly; arm thickness scales with the pitch so rungs never collide","affects":"geometry","min":8,"max":16,"step":1},"chevron":{"type":"range","default":0.09,"label":"Chevron throw","describe":"how far forward each arm's root is thrown relative to its tip, in metres \u2014 the herringbone angle, and the thing that tells a scene which way the rover was going. 0.0 makes every rung a straight ladder rung square across the band, a plain rib tread with no direction to it; 0.09 is the default, arms swept back about 25 degrees, the classic chunky knobby print; 0.14 is a hard aggressive V. Automatically clamped against the rung pitch so a big throw at a high rung count still leaves clean host surface between the arms instead of merging them","affects":"geometry","min":0,"max":0.14},"rib":{"type":"range","default":0.28,"label":"Centre rib","describe":"width of the continuous centre rib down each band, as a fraction of the tread width. This is the only part of the mark that runs unbroken from end to end, so it is what makes the pair read as two parallel LINES from 10 m and what carries the track across a chained joint. 0.16 is a hairline rib that all but disappears, leaving the band reading as a row of separate chevron bites; 0.28 is the default, a clear line showing through the slots between the arms; 0.44 is a broad packed centre strip like a heavily loaded tyre, where the arms read as short teeth on a solid line","affects":"geometry","min":0.16,"max":0.44}},"presets":{"regolith-rust":{"rut":"#5b4337"},"pale-dust":{"rut":"#856f5d"},"basalt-dark":{"rut":"#3e2f2b"},"pale-grey":{"rut":"#989ea7"}},"rev":1787907227,"materials":{"rut":{"kind":"soil","finish":"dry"}},"materials_note":"what each colour zone is made of: `kind` and `finish` name a procedural PBR material in https://polyfork.dev/materials.mjs (dressByAlbedo finds a zone by its albedo in COLOR_0). A zone not listed has not been classified.","preview_v":1792495612,"mod_v":1787907227}