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diff --git a/public/bluebey-studio/src/look.js b/public/bluebey-studio/src/look.js
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--- a/public/bluebey-studio/src/look.js
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-import * as THREE from 'three';
-import { RoomEnvironment } from 'three/addons/environments/RoomEnvironment.js';
-
-/**
- * The "look" of the scene, as opposed to the character's shape: body colours,
- * mirroring, shadows and the lighting environment.
- *
- * These all live here rather than in `main.js` because they are a *policy* about
- * how the model should be presented, and they need to be re-applied as a group
- * whenever any of them changes. `main.js` only has to call `apply()`.
- *
- * Two things are worth knowing:
- *
- *  - Colours are written onto the model's ORIGINAL materials. The flat/toon
- *    style caches its own materials derived from them, so `styles.refreshColors()`
- *    has to be called afterwards or the toon shading keeps the old colour.
- *
- *  - Shadow softness is `LightShadow.radius` with a PCF soft shadow map, plus a
- *    hand-drawn contact blob for the "ground shadow only" mode. (VSM was tried
- *    for its wider blur and cut the shadow off in a straight line where it met
- *    the feet - see the note in `apply`.)
- */
-
-export const ENVIRONMENTS = [
-  { value: 'gradient', label: 'スタジオ（明るい）' },
-  { value: 'room', label: '室内（自然な反射）' },
-  { value: 'none', label: 'なし（のっぺり）' },
-];
-
-/** Material name -> which entry of `render.colors` it takes. */
-const PART_COLORS = {
-  blb: 'body',
-  Hand: 'accent',
-  Foots: 'feet',
-  Nose: 'nose',
-  Leaf: 'leaf',
-  Vein: 'vein',
-};
-
-const clamp01 = (value) => Math.min(1, Math.max(0, Number(value) || 0));
-
-/**
- * A soft blob that sits under the feet: the shadow a toy would cast on a table.
- * It is a plain plane with a radial gradient, so it is cheap and it works in the
- * line-art styles too, where the real shadow map is switched off.
- */
-function makeContactShadow(size) {
-  const canvas = document.createElement('canvas');
-  canvas.width = 128;
-  canvas.height = 128;
-  const ctx = canvas.getContext('2d');
-  const gradient = ctx.createRadialGradient(64, 64, 4, 64, 64, 62);
-  gradient.addColorStop(0, 'rgba(0,0,0,0.55)');
-  gradient.addColorStop(0.55, 'rgba(0,0,0,0.28)');
-  gradient.addColorStop(1, 'rgba(0,0,0,0)');
-  ctx.fillStyle = gradient;
-  ctx.fillRect(0, 0, 128, 128);
-
-  const texture = new THREE.CanvasTexture(canvas);
-  texture.colorSpace = THREE.SRGBColorSpace;
-  const material = new THREE.MeshBasicMaterial({
-    map: texture,
-    transparent: true,
-    depthWrite: false,
-    toneMapped: false,
-  });
-  const mesh = new THREE.Mesh(new THREE.PlaneGeometry(1, 1), material);
-  mesh.rotation.x = -Math.PI / 2;
-  mesh.renderOrder = -0.5;
-  mesh.userData.isHelper = true;
-  mesh.name = 'contact-shadow';
-  mesh.scale.setScalar(Math.max(1, size.x) * 1.15);
-  return mesh;
-}
-
-export function createLook({ renderer, scene, styles, model, ground, key, character, gradientEnvironment }) {
-  const pmrem = new THREE.PMREMGenerator(renderer);
-  const roomEnvironment = pmrem.fromScene(new RoomEnvironment(), 0.06).texture;
-
-  const contact = makeContactShadow(model.size);
-  scene.add(contact);
-
-  const environmentFor = (name) => {
-    if (name === 'room') return roomEnvironment;
-    if (name === 'none') return null;
-    return gradientEnvironment ?? null;
-  };
-
-  function applyColors(colors) {
-    if (!colors) return;
-    let touched = false;
-    for (const mesh of model.parts.body) {
-      const material = styles.originals.get(mesh) ?? mesh.material;
-      const part = PART_COLORS[material?.name];
-      if (!part || !colors[part]) continue;
-      if (!material.color) material.color = new THREE.Color();
-      material.color.set(colors[part]);
-      touched = true;
-    }
-    // The toon materials are cached copies, so they need the same edit.
-    if (touched) styles.refreshColors?.();
-    return touched;
-  }
-
-  return {
-    contact,
-
-    /**
-     * @param {object} render  `state.render`
-     * @param {{ line?: boolean }} [context] `line` is true in the line-art
-     *   styles, where shadows and reflections are deliberately switched off.
-     */
-    apply(render, { line = false } = {}) {
-      if (!render) return;
-      applyColors(render.colors);
-
-      // Mirroring by negative scale is safe: the renderer flips the winding for
-      // a negative determinant, and the normals go through the inverse-transpose.
-      character.scale.x = render.mirror ? -1 : 1;
-
-      const wantsShadow = render.shadow !== false && !line;
-      const blobOnly = render.contactShadow === true;
-      ground.visible = wantsShadow && !blobOnly;
-      ground.material.opacity = clamp01(render.shadowOpacity ?? 0.22);
-      key.castShadow = wantsShadow && !blobOnly;
-      key.shadow.needsUpdate = true;
-
-      // The blob is drawn in BOTH modes. On its own it *is* the shadow (the
-      // "ground shadow only" setting); with the shadow map on it fills the gap
-      // where the body hides its own shadow right at the feet, which otherwise
-      // reads as "the shadow is cut off". It is the only thing keeping the
-      // character looking like it is standing on the floor rather than above it.
-      // The blob sits at the feet. It used to be drawn whenever the shadow was on,
-      // which left a faint ring behind at the origin once the character was moved;
-      // it is now opt-in (`render.contactBlob`, default off). It is always shown in
-      // the 「接地影だけ」 mode, where it is the only shadow there is.
-      contact.visible = wantsShadow && (blobOnly || render.contactBlob === true);
-      contact.material.opacity = clamp01((render.shadowOpacity ?? 0.22) * (blobOnly ? 2.6 : 1.6));
-      const spread = Math.max(0.2, (model.size.x * 1.15) / Math.max(0.05, render.shadowSoftness ?? 1.6));
-      contact.scale.setScalar(Math.max(0.5, model.size.x * 1.35 - spread * 0.25));
-      contact.position.y = 0.012;
-
-      const softness = Number(render.shadowSoftness) || 1.6;
-      // PCF, always. three 0.186 removed PCFSoftShadowMap (asking for it warns and
-      // falls back to this anyway), and VSM needs a depth-variance bias that cut
-      // the shadow away in a straight line right at the feet. `radius` is what
-      // softens PCF.
-      if (renderer.shadowMap.type !== THREE.PCFShadowMap) {
-        renderer.shadowMap.type = THREE.PCFShadowMap;
-        // Every shadow-receiving material has to be recompiled for the switch.
-        ground.material.needsUpdate = true;
-        for (const mesh of model.parts.body) {
-          const material = mesh.material;
-          if (Array.isArray(material)) material.forEach((m) => { m.needsUpdate = true; });
-          else if (material) material.needsUpdate = true;
-        }
-      }
-      // PCF's radius is in *shadow map texels*, and the map covers about 15 world
-      // units, so a radius of 1-2 is invisible. This scales it into something the
-      // eye can see without the sampling turning into noise.
-      if ('radius' in key.shadow) key.shadow.radius = Math.max(0.5, softness * 5);
-
-      const environment = line ? null : environmentFor(render.environment);
-      if (scene.environment !== environment) scene.environment = environment;
-      if ('environmentIntensity' in scene) {
-        scene.environmentIntensity = Number(render.envIntensity ?? 1);
-      }
-    },
-
-    /** The colours a theme would set, as a plain `{ part: '#rrggbb' }`. */
-    palette(theme) {
-      return { ...(theme?.colors ?? {}) };
-    },
-
-    dispose() {
-      contact.geometry.dispose();
-      contact.material.map?.dispose();
-      contact.material.dispose();
-      contact.removeFromParent();
-      roomEnvironment.dispose();
-      pmrem.dispose();
-    },
-  };
-}