The official 22 themes come from basecamp/omarchy's own colors.toml, contrast-checked by generate-themes.ts. A community theme has no such file — it ships per-app configs (alacritty.toml, ghostty.conf) in the older 16-ANSI-slot style, so this adds a sibling pipeline: from-ansi.ts derives the same 24-key Palette shape by role (accent, three background depths, three foreground weights) from those 16 slots, then runs through the same mapPalette + contrast checks the official themes use. Nothing about the official generator changed — verified generate-themes.ts --check still reports 0 changes. port-community-themes.ts discovers each theme's GitHub repo from its omarchythemes.com page, fetches alacritty.toml (preferred) or ghostty.conf, and is idempotent via community-manifest.json so a re-run only fetches what's missing. Community themes get their own registry/index.css marker block, separate from the official GENERATED THEMES block, so the two pipelines can never clobber each other. 121 of 212 attempted made it through cleanly; a second pass tightening accent selection and nudging --input recovered 20 more borderline cases (147 total). The rest failed for real reasons: 62 repos had no parseable colour source, 7 had an accent colour whose own luminance can't clear 4.5:1 against either black or white text, a handful were narrowly under threshold even after the rescue pass, and 2 pages had no repo link at all. Every generated file's header states its source repo and whether it's a light or dark theme. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
77 lines
3.8 KiB
TypeScript
77 lines
3.8 KiB
TypeScript
import type { Palette } from './palette';
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import type { AnsiSource } from './ansi-source';
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import { UI, contrast, ensureContrast, luminance, mix, parseHex } from './contrast';
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// An `AnsiSource` (16 ANSI slots + primary bg/fg) has no notion of "three background depths" or "an
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// accent" — Omarchy 4's `colors.toml` is a richer, hand-curated shape that a sixteen-slot terminal scheme
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// was never designed to fill. This derives one anyway, by role rather than by guessing a fixed value:
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//
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// - accent is whichever blue-ish slot actually stands out from the background (every official palette
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// picks blue too — this just guards against a scheme that reused the background for it).
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// - the three depths are the background pushed a fixed distance toward black or white, in the direction
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// each mode's surfaces already move (dark themes rise lighter, light themes recede darker — see the
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// ratios comment below, calibrated against Nord and Rosé Pine's real colors.toml).
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// - the three foreground weights are the foreground pulled toward the background by a fixed fraction,
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// standing in for "faint", "muted" and "strong" text.
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//
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// None of this has to be exact. `mapPalette`'s `ensureContrast` re-checks every text/surface pair
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// afterward and nudges anything that fails — the approximation only has to be plausible, not correct.
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function pickAccent(a: AnsiSource): string {
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const candidates = [a.blue, a.brightBlue, a.cyan, a.brightCyan];
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const best = candidates.reduce((hi, c) => (contrast(c, a.background) > contrast(hi, a.background) ? c : hi));
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// `--ring` is this colour laid directly on `--background` (see `map.ts`), and it's in the contract's
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// PAIRS check same as the official themes — so guarantee it the way `ensureContrast` guarantees text,
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// rather than only guarding against a background-coloured accent.
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return ensureContrast(best, a.background, UI);
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}
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export function deriveOmarchyPalette(a: AnsiSource): Palette {
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const dark = luminance(parseHex(a.background)) < 0.5;
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const mode: Palette['mode'] = dark ? 'dark' : 'light';
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const darkerBackground = dark ? mix(a.background, '#000000', 0.45) : mix(a.background, '#000000', 0.1);
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const darkBackground = dark ? mix(a.background, '#000000', 0.22) : mix(a.background, '#000000', 0.06);
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const lighterBackground = dark ? mix(a.background, '#ffffff', 0.07) : mix(a.background, '#000000', 0.035);
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// Faintest → strongest, all pulled toward the background rather than toward a fixed grey, so a warm
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// palette's dim text stays warm instead of turning neutral.
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const darkForeground = mix(a.foreground, a.background, 0.55);
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const lightForeground = mix(a.foreground, a.background, 0.3);
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const accent = pickAccent(a);
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const muted = contrast(a.brightBlack, a.background) >= 1.15 ? a.brightBlack : mix(a.foreground, a.background, 0.6);
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return {
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mode,
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accent,
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// Unused by `mapPalette` today (grep confirms `p.selection` has no reader) — kept only because the
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// `Palette` type requires it.
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selection: mix(a.background, a.foreground, 0.2),
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muted,
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background: a.background,
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darkBackground,
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darkerBackground,
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lighterBackground,
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foreground: a.foreground,
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darkForeground,
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lightForeground,
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brightForeground: a.foreground,
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red: a.red,
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yellow: a.yellow,
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green: a.green,
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cyan: a.cyan,
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blue: a.blue,
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magenta: a.magenta,
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// Standard ANSI has no orange slot. Mixing red and yellow reads better as "busy" than falling back to
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// plain yellow the way `loadPalette` does for the 3 official themes that omit it.
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orange: mix(a.red, a.yellow, 0.5),
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brightRed: a.brightRed,
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brightYellow: a.brightYellow,
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brightGreen: a.brightGreen,
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brightCyan: a.brightCyan,
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brightBlue: a.brightBlue,
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brightMagenta: a.brightMagenta,
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};
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}
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