{"params":{"colorway":{"type":"choice","default":"municipal","label":"Colorway","describe":"Curated kit-coherent scheme. municipal is the approved build: a mid-grey precast pad, a blue-grey painted steel ring, true-white line paint and a cool-white stop board with dark bolt heads. galvanised lays new pale concrete round a bare mid-grey galvanised ring. weathered is a circle twenty winters old: stained warm-grey concrete, a dark ring and a board gone cream. rusted-rim leaves the ring as unpainted steel gone to oxide brown in a fresh pale pad. Every scheme keeps the line paint the kit's true white and never uses the kit accent blue.","options":["municipal","galvanised","weathered","rusted-rim"]},"matchday":{"type":"range","default":0.6,"label":"Matchday","describe":"Whether there is a meeting on. The circle is cast in, so the pad, the ring, the board and the paint are the SAME BUILD at every value, vertex for vertex; only what is left on it changes. From 0.4 a wire brush (pale wooden stock on dark bristles) lies along the ring at the back left, where the official left it after sweeping the circle. From 0.8 the sector is pegged out: rope (red in the approved scheme) strung taut between dark steel pins on both sector rays \u2014 beside the painted lines with the base on, driven into the ground where the base is off and there is no paint. 0 to 0.3 is the bare circle on a wet Tuesday.","affects":"geometry","min":0,"max":1,"step":0.1},"event":{"type":"choice","default":"shot","label":"Event","describe":"Which throwing circle the pour is built as. shot is the approved build: a 2.135 m circle with the curved white stop board bolted on the ring at the front, on a 3.5 m pad. hammer is the same 2.135 m circle and 3.5 m pad with no board, so the ring runs unbroken all the way round. discus opens the circle to 2.50 m with no board and grows the pad to 4.0 m to carry it, with one more edging unit down each side. The ring section, the floor drop, the V-joints, the 0.5 m wide edging of 1 m precast units along the back and sides, and the 34.92-degree sector lines running from the circle to the front edge are identical in all three; the footprint stays on the 0.5 m grid.","affects":"geometry","options":["shot","hammer","discus"]},"base":{"type":"toggle","default":false,"label":"Square base","describe":"Whether the circle comes with its square concrete base (owner, 2026-09-20: the base is optional). On, the approved build: the ring is cast into a 3.5 m pad (4.0 m for discus) that stands 0.02 m proud with a chamfer all round, edged in 1 m precast units, with the two white sector lines painted on it. Off, the throwing circle alone: ring, floor, centre line and stop board at exactly the same heights and the same 2.135 m diameter, closed underneath and resting on y = 0, so it drops straight onto a concourse tile or the kit's own terrain. The sector lines go with the pad, because they are paint on it; the matchday rope still pegs out the sector, into the ground instead of into the pad.","affects":"geometry"},"concrete":{"type":"color","default":"#a8ada6","label":"Concrete","describe":"Albedo of the whole pour: the pad slabs, their chamfers and V-joints, the edge upstand and the circle floor inside the ring. One zone because it is one material, as the reference draws pad and floor at the same value."},"rim":{"type":"color","default":"#66757f","label":"Ring","describe":"Albedo of the steel ring: its top band, the chamfer on its outer arris and its outer wall. Keep it clearly darker than the concrete so the circle reads as a ring from across the ground. Its inside face is line paint, not this zone."},"paint":{"type":"color","default":"#f6f7f5","label":"Line paint","describe":"Albedo of the white paint: the centre line across the circle floor, the two sector lines on the pad and the painted inside face of the ring. The kit's TRUE white; a pale grey here reads as dirt."},"board":{"type":"color","default":"#edf5ff","label":"Stop board","describe":"Albedo of the curved stop board at the front of the ring, all its faces. Present only when event is shot. A painted white board in every scheme but weathered, where it has gone cream."},"steel":{"type":"color","default":"#33383c","label":"Steel fittings","describe":"Albedo of the small dark steel: the three bolt heads on the stop board, the brush bristles and the matchday rope pins. Dark so the bolts read on the white board."},"wood":{"type":"color","default":"#d8c79a","label":"Brush stock","describe":"Albedo of the wire brush's wooden stock (matchday 0.4 and above)."},"rope":{"type":"color","default":"#c0372f","label":"Sector rope","describe":"Albedo of the rope pegged along the sector lines (matchday 0.8 and above). Strongly coloured against both the concrete and the white paint."}},"presets":{"municipal":{"concrete":"#a8ada6","rim":"#66757f","paint":"#f6f7f5","board":"#edf5ff","steel":"#33383c","wood":"#d8c79a","rope":"#c0372f"},"galvanised":{"concrete":"#e4e5e1","rim":"#7c868c","paint":"#f6f7f5","board":"#edf5ff","steel":"#1d2024","wood":"#b57a52","rope":"#b0503a"},"weathered":{"concrete":"#8f8d83","rim":"#4a5760","paint":"#f6f7f5","board":"#fff2d8","steel":"#1d2024","wood":"#8b5e37","rope":"#c0372f"},"rusted-rim":{"concrete":"#e8e6e1","rim":"#9c5a2e","paint":"#f6f7f5","board":"#edf5ff","steel":"#33383c","wood":"#d8c79a","rope":"#8e3f2e"}},"materials":{"concrete":{"kind":"stone","finish":"concrete"},"rim":{"kind":"paint","finish":"eggshell"},"paint":{"kind":"paint","finish":"matte"},"board":{"kind":"paint","finish":"gloss"},"steel":{"kind":"metal","finish":"brushed"},"wood":{"kind":"wood","finish":"raw"},"rope":{"kind":"fabric","finish":"canvas"}},"rev":1792408797,"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":1792426814,"mod_v":1792408797}