jared
02b2ce8109
Same treatment as the seasonal themes: split the 502-line chatBackground.ts Record into one premium module per background under lotus/backgrounds/ (each exposes a tuned dark + light ChatBgVariants), one Opus agent per background against a shared brief. chatBackground.ts now assembles DARK/LIGHT from the modules; getChatBg is unchanged. Carbon + Aurora are kept inline as-is (user favorites); none stays the empty layer. Every redesign: layered oklch palettes, seamless tiling with worked-out tile math (integer-multiple periods; edge-wrapping inline-SVG data-URIs for circuit/hexgrid/waves/herringbone/chevron/tactical), independently-tuned dark+light (not a recolor), and low "felt-not-read" opacity so chat text stays WCAG-AA legible. The 5 animated backgrounds (rain, star drift, grid pulse, aurora flow, fireflies) each colocate a vanilla-extract keyframe .css.ts, animate only background-position for a jump-free loop, and — since getChatBg strips animation for reduced-motion — render a finished static frame too. Redesigned: blueprint, stars, topographic, herringbone, crosshatch, chevron, polka, triangles, plaid, tactical, circuit, hexgrid, waves, neon, anim-rain, anim-stars, anim-pulse, anim-aurora, anim-fireflies. Gates: tsc clean, ESLint clean, Prettier clean, build OK, 551 tests pass. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
53 lines
6.4 KiB
TypeScript
53 lines
6.4 KiB
TypeScript
import { ChatBgVariants } from './types';
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// Herringbone — a refined, tactile broken-zigzag weave (the classic parquet / tweed
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// motif) rather than a flat hairline grid. Each plank is drawn twice in a compact SVG
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// data-URI tile: a lit "thread" and a 0.6px-offset shadow companion, so every plank
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// reads as a beveled, three-dimensional strand of fabric instead of a line.
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//
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// SEAMLESS TILING: planks live on a 12px lattice and their orientation follows the true
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// herringbone rule orient(cx, cy) = '/' when (cx - cy) mod 4 in {0, 1}, else '\\'.
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// That rule is exactly periodic every 4 cells in BOTH axes, so the 48x48px tile repeats
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// with no seam at any scroll offset; segment endpoints all land on lattice corners, so
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// the broken V's interlock perfectly across tile edges.
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//
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// DEPTH: beneath the weave sit two very low-contrast oklch layers — a diagonal two-tone
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// wash that gives the fabric a faint lit/shadowed side, plus a soft vignette that lets
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// the centre (where text lives) stay calmest. Everything is kept in the "felt, not read"
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// opacity band so WCAG-AA body text sits comfortably on top in both themes.
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const WEAVE_DARK =
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'data:image/svg+xml;charset=utf-8,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%2248%22%20height%3D%2248%22%20viewBox%3D%220%200%2048%2048%22%3E%3Cpath%20d%3D%22M-11.4%200.6L0.6%20-11.4M0.6%200.6L12.6%20-11.4M12.6%20-11.4L24.6%200.6M24.6%20-11.4L36.6%200.6M36.6%200.6L48.6%20-11.4M48.6%200.6L60.6%20-11.4M-11.4%200.6L0.6%2012.6M0.6%2012.6L12.6%200.6M12.6%2012.6L24.6%200.6M24.6%200.6L36.6%2012.6M36.6%200.6L48.6%2012.6M48.6%2012.6L60.6%200.6M-11.4%2012.6L0.6%2024.6M0.6%2012.6L12.6%2024.6M12.6%2024.6L24.6%2012.6M24.6%2024.6L36.6%2012.6M36.6%2012.6L48.6%2024.6M48.6%2012.6L60.6%2024.6M-11.4%2036.6L0.6%2024.6M0.6%2024.6L12.6%2036.6M12.6%2024.6L24.6%2036.6M24.6%2036.6L36.6%2024.6M36.6%2036.6L48.6%2024.6M48.6%2024.6L60.6%2036.6M-11.4%2048.6L0.6%2036.6M0.6%2048.6L12.6%2036.6M12.6%2036.6L24.6%2048.6M24.6%2036.6L36.6%2048.6M36.6%2048.6L48.6%2036.6M48.6%2048.6L60.6%2036.6M-11.4%2048.6L0.6%2060.6M0.6%2060.6L12.6%2048.6M12.6%2060.6L24.6%2048.6M24.6%2048.6L36.6%2060.6M36.6%2048.6L48.6%2060.6M48.6%2060.6L60.6%2048.6%22%20fill%3D%22none%22%20stroke%3D%22rgb%2810%2C8%2C6%29%22%20stroke-width%3D%221.1%22%20stroke-opacity%3D%220.085%22%20stroke-linecap%3D%22round%22%2F%3E%3Cpath%20d%3D%22M-12%200L0%20-12M0%200L12%20-12M12%20-12L24%200M24%20-12L36%200M36%200L48%20-12M48%200L60%20-12M-12%200L0%2012M0%2012L12%200M12%2012L24%200M24%200L36%2012M36%200L48%2012M48%2012L60%200M-12%2012L0%2024M0%2012L12%2024M12%2024L24%2012M24%2024L36%2012M36%2012L48%2024M48%2012L60%2024M-12%2036L0%2024M0%2024L12%2036M12%2024L24%2036M24%2036L36%2024M36%2036L48%2024M48%2024L60%2036M-12%2048L0%2036M0%2048L12%2036M12%2036L24%2048M24%2036L36%2048M36%2048L48%2036M48%2048L60%2036M-12%2048L0%2060M0%2060L12%2048M12%2060L24%2048M24%2048L36%2060M36%2048L48%2060M48%2060L60%2048%22%20fill%3D%22none%22%20stroke%3D%22rgb%28210%2C199%2C180%29%22%20stroke-width%3D%221.1%22%20stroke-opacity%3D%220.111%22%20stroke-linecap%3D%22round%22%2F%3E%3C%2Fsvg%3E';
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const WEAVE_LIGHT =
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'data:image/svg+xml;charset=utf-8,%3Csvg%20xmlns%3D%22http%3A%2F%2Fwww.w3.org%2F2000%2Fsvg%22%20width%3D%2248%22%20height%3D%2248%22%20viewBox%3D%220%200%2048%2048%22%3E%3Cpath%20d%3D%22M-11.4%200.6L0.6%20-11.4M0.6%200.6L12.6%20-11.4M12.6%20-11.4L24.6%200.6M24.6%20-11.4L36.6%200.6M36.6%200.6L48.6%20-11.4M48.6%200.6L60.6%20-11.4M-11.4%200.6L0.6%2012.6M0.6%2012.6L12.6%200.6M12.6%2012.6L24.6%200.6M24.6%200.6L36.6%2012.6M36.6%200.6L48.6%2012.6M48.6%2012.6L60.6%200.6M-11.4%2012.6L0.6%2024.6M0.6%2012.6L12.6%2024.6M12.6%2024.6L24.6%2012.6M24.6%2024.6L36.6%2012.6M36.6%2012.6L48.6%2024.6M48.6%2012.6L60.6%2024.6M-11.4%2036.6L0.6%2024.6M0.6%2024.6L12.6%2036.6M12.6%2024.6L24.6%2036.6M24.6%2036.6L36.6%2024.6M36.6%2036.6L48.6%2024.6M48.6%2024.6L60.6%2036.6M-11.4%2048.6L0.6%2036.6M0.6%2048.6L12.6%2036.6M12.6%2036.6L24.6%2048.6M24.6%2036.6L36.6%2048.6M36.6%2048.6L48.6%2036.6M48.6%2048.6L60.6%2036.6M-11.4%2048.6L0.6%2060.6M0.6%2060.6L12.6%2048.6M12.6%2060.6L24.6%2048.6M24.6%2048.6L36.6%2060.6M36.6%2048.6L48.6%2060.6M48.6%2060.6L60.6%2048.6%22%20fill%3D%22none%22%20stroke%3D%22rgb%28126%2C116%2C98%29%22%20stroke-width%3D%221.1%22%20stroke-opacity%3D%220.075%22%20stroke-linecap%3D%22round%22%2F%3E%3Cpath%20d%3D%22M-12%200L0%20-12M0%200L12%20-12M12%20-12L24%200M24%20-12L36%200M36%200L48%20-12M48%200L60%20-12M-12%200L0%2012M0%2012L12%200M12%2012L24%200M24%200L36%2012M36%200L48%2012M48%2012L60%200M-12%2012L0%2024M0%2012L12%2024M12%2024L24%2012M24%2024L36%2012M36%2012L48%2024M48%2012L60%2024M-12%2036L0%2024M0%2024L12%2036M12%2024L24%2036M24%2036L36%2024M36%2036L48%2024M48%2024L60%2036M-12%2048L0%2036M0%2048L12%2036M12%2036L24%2048M24%2036L36%2048M36%2048L48%2036M48%2048L60%2036M-12%2048L0%2060M0%2060L12%2048M12%2060L24%2048M24%2048L36%2060M36%2048L48%2060M48%2060L60%2048%22%20fill%3D%22none%22%20stroke%3D%22rgb%28255%2C253%2C247%29%22%20stroke-width%3D%221.1%22%20stroke-opacity%3D%220.098%22%20stroke-linecap%3D%22round%22%2F%3E%3C%2Fsvg%3E';
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export const herringbone: ChatBgVariants = {
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// Warm taupe threads (~oklch(0.79 0.02 75)) over a charcoal base. The two-tone wash
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// runs cool-charcoal -> slightly warmer charcoal across the diagonal so the weave has
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// a gentle light side; the vignette darkens the far corners a touch for depth.
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dark: {
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backgroundColor: '#14120f',
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backgroundImage: [
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`url("${WEAVE_DARK}")`,
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'linear-gradient(135deg, oklch(0.26 0.012 70 / 0.5) 0%, oklch(0.2 0.008 60 / 0.5) 100%)',
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'radial-gradient(120% 120% at 50% 40%, oklch(0.24 0.01 65 / 0) 55%, oklch(0.12 0.006 55 / 0.45) 100%)',
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].join(','),
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backgroundSize: '48px 48px, 100% 100%, 100% 100%',
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backgroundRepeat: 'repeat, no-repeat, no-repeat',
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},
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// Greige threads (shadow ~oklch(0.6 0.015 75)) with a warm-white highlight over a warm
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// off-white base. The wash tilts warm-white -> faint greige across the diagonal for the
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// lit/shadow side; a whisper-soft vignette keeps corners from going flat.
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light: {
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backgroundColor: '#f6f3ec',
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backgroundImage: [
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`url("${WEAVE_LIGHT}")`,
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'linear-gradient(135deg, oklch(0.99 0.006 85 / 0.6) 0%, oklch(0.93 0.01 80 / 0.6) 100%)',
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'radial-gradient(120% 120% at 50% 40%, oklch(0.98 0.006 85 / 0) 58%, oklch(0.87 0.012 78 / 0.4) 100%)',
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].join(','),
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backgroundSize: '48px 48px, 100% 100%, 100% 100%',
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backgroundRepeat: 'repeat, no-repeat, no-repeat',
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},
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};
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