feat: shadcn info preset code

packages/shadcn/src/colors.ts

@@ -0,0 +1,473 @@
+export const TAILWIND_COLOR_SCALES = [
+  "50",
+  "100",
+  "200",
+  "300",
+  "400",
+  "500",
+  "600",
+  "700",
+  "800",
+  "900",
+  "950",
+] as const
+
+export const TAILWIND_COLOR_FAMILIES = [
+  "red",
+  "orange",
+  "amber",
+  "yellow",
+  "lime",
+  "green",
+  "emerald",
+  "teal",
+  "cyan",
+  "sky",
+  "blue",
+  "indigo",
+  "violet",
+  "purple",
+  "fuchsia",
+  "pink",
+  "rose",
+  "slate",
+  "gray",
+  "zinc",
+  "neutral",
+  "stone",
+  "mauve",
+  "olive",
+  "mist",
+  "taupe",
+] as const
+
+export type TailwindColorScale = (typeof TAILWIND_COLOR_SCALES)[number]
+export type TailwindColorFamily = (typeof TAILWIND_COLOR_FAMILIES)[number]
+
+function parseCatalog<T>(catalog: string) {
+  return JSON.parse(catalog) as T
+}
+
+export const TAILWIND_COLORS = parseCatalog<
+  Record<TailwindColorFamily, Record<TailwindColorScale, string>>
+>(String.raw`{
+  "red": {
+    "50": "oklch(97.1% 0.013 17.38)",
+    "100": "oklch(93.6% 0.032 17.717)",
+    "200": "oklch(88.5% 0.062 18.334)",
+    "300": "oklch(80.8% 0.114 19.571)",
+    "400": "oklch(70.4% 0.191 22.216)",
+    "500": "oklch(63.7% 0.237 25.331)",
+    "600": "oklch(57.7% 0.245 27.325)",
+    "700": "oklch(50.5% 0.213 27.518)",
+    "800": "oklch(44.4% 0.177 26.899)",
+    "900": "oklch(39.6% 0.141 25.723)",
+    "950": "oklch(25.8% 0.092 26.042)"
+  },
+  "orange": {
+    "50": "oklch(98% 0.016 73.684)",
+    "100": "oklch(95.4% 0.038 75.164)",
+    "200": "oklch(90.1% 0.076 70.697)",
+    "300": "oklch(83.7% 0.128 66.29)",
+    "400": "oklch(75% 0.183 55.934)",
+    "500": "oklch(70.5% 0.213 47.604)",
+    "600": "oklch(64.6% 0.222 41.116)",
+    "700": "oklch(55.3% 0.195 38.402)",
+    "800": "oklch(47% 0.157 37.304)",
+    "900": "oklch(40.8% 0.123 38.172)",
+    "950": "oklch(26.6% 0.079 36.259)"
+  },
+  "amber": {
+    "50": "oklch(98.7% 0.022 95.277)",
+    "100": "oklch(96.2% 0.059 95.617)",
+    "200": "oklch(92.4% 0.12 95.746)",
+    "300": "oklch(87.9% 0.169 91.605)",
+    "400": "oklch(82.8% 0.189 84.429)",
+    "500": "oklch(76.9% 0.188 70.08)",
+    "600": "oklch(66.6% 0.179 58.318)",
+    "700": "oklch(55.5% 0.163 48.998)",
+    "800": "oklch(47.3% 0.137 46.201)",
+    "900": "oklch(41.4% 0.112 45.904)",
+    "950": "oklch(27.9% 0.077 45.635)"
+  },
+  "yellow": {
+    "50": "oklch(98.7% 0.026 102.212)",
+    "100": "oklch(97.3% 0.071 103.193)",
+    "200": "oklch(94.5% 0.129 101.54)",
+    "300": "oklch(90.5% 0.182 98.111)",
+    "400": "oklch(85.2% 0.199 91.936)",
+    "500": "oklch(79.5% 0.184 86.047)",
+    "600": "oklch(68.1% 0.162 75.834)",
+    "700": "oklch(55.4% 0.135 66.442)",
+    "800": "oklch(47.6% 0.114 61.907)",
+    "900": "oklch(42.1% 0.095 57.708)",
+    "950": "oklch(28.6% 0.066 53.813)"
+  },
+  "lime": {
+    "50": "oklch(98.6% 0.031 120.757)",
+    "100": "oklch(96.7% 0.067 122.328)",
+    "200": "oklch(93.8% 0.127 124.321)",
+    "300": "oklch(89.7% 0.196 126.665)",
+    "400": "oklch(84.1% 0.238 128.85)",
+    "500": "oklch(76.8% 0.233 130.85)",
+    "600": "oklch(64.8% 0.2 131.684)",
+    "700": "oklch(53.2% 0.157 131.589)",
+    "800": "oklch(45.3% 0.124 130.933)",
+    "900": "oklch(40.5% 0.101 131.063)",
+    "950": "oklch(27.4% 0.072 132.109)"
+  },
+  "green": {
+    "50": "oklch(98.2% 0.018 155.826)",
+    "100": "oklch(96.2% 0.044 156.743)",
+    "200": "oklch(92.5% 0.084 155.995)",
+    "300": "oklch(87.1% 0.15 154.449)",
+    "400": "oklch(79.2% 0.209 151.711)",
+    "500": "oklch(72.3% 0.219 149.579)",
+    "600": "oklch(62.7% 0.194 149.214)",
+    "700": "oklch(52.7% 0.154 150.069)",
+    "800": "oklch(44.8% 0.119 151.328)",
+    "900": "oklch(39.3% 0.095 152.535)",
+    "950": "oklch(26.6% 0.065 152.934)"
+  },
+  "emerald": {
+    "50": "oklch(97.9% 0.021 166.113)",
+    "100": "oklch(95% 0.052 163.051)",
+    "200": "oklch(90.5% 0.093 164.15)",
+    "300": "oklch(84.5% 0.143 164.978)",
+    "400": "oklch(76.5% 0.177 163.223)",
+    "500": "oklch(69.6% 0.17 162.48)",
+    "600": "oklch(59.6% 0.145 163.225)",
+    "700": "oklch(50.8% 0.118 165.612)",
+    "800": "oklch(43.2% 0.095 166.913)",
+    "900": "oklch(37.8% 0.077 168.94)",
+    "950": "oklch(26.2% 0.051 172.552)"
+  },
+  "teal": {
+    "50": "oklch(98.4% 0.014 180.72)",
+    "100": "oklch(95.3% 0.051 180.801)",
+    "200": "oklch(91% 0.096 180.426)",
+    "300": "oklch(85.5% 0.138 181.071)",
+    "400": "oklch(77.7% 0.152 181.912)",
+    "500": "oklch(70.4% 0.14 182.503)",
+    "600": "oklch(60% 0.118 184.704)",
+    "700": "oklch(51.1% 0.096 186.391)",
+    "800": "oklch(43.7% 0.078 188.216)",
+    "900": "oklch(38.6% 0.063 188.416)",
+    "950": "oklch(27.7% 0.046 192.524)"
+  },
+  "cyan": {
+    "50": "oklch(98.4% 0.019 200.873)",
+    "100": "oklch(95.6% 0.045 203.388)",
+    "200": "oklch(91.7% 0.08 205.041)",
+    "300": "oklch(86.5% 0.127 207.078)",
+    "400": "oklch(78.9% 0.154 211.53)",
+    "500": "oklch(71.5% 0.143 215.221)",
+    "600": "oklch(60.9% 0.126 221.723)",
+    "700": "oklch(52% 0.105 223.128)",
+    "800": "oklch(45% 0.085 224.283)",
+    "900": "oklch(39.8% 0.07 227.392)",
+    "950": "oklch(30.2% 0.056 229.695)"
+  },
+  "sky": {
+    "50": "oklch(97.7% 0.013 236.62)",
+    "100": "oklch(95.1% 0.026 236.824)",
+    "200": "oklch(90.1% 0.058 230.902)",
+    "300": "oklch(82.8% 0.111 230.318)",
+    "400": "oklch(74.6% 0.16 232.661)",
+    "500": "oklch(68.5% 0.169 237.323)",
+    "600": "oklch(58.8% 0.158 241.966)",
+    "700": "oklch(50% 0.134 242.749)",
+    "800": "oklch(44.3% 0.11 240.79)",
+    "900": "oklch(39.1% 0.09 240.876)",
+    "950": "oklch(29.3% 0.066 243.157)"
+  },
+  "blue": {
+    "50": "oklch(97% 0.014 254.604)",
+    "100": "oklch(93.2% 0.032 255.585)",
+    "200": "oklch(88.2% 0.059 254.128)",
+    "300": "oklch(80.9% 0.105 251.813)",
+    "400": "oklch(70.7% 0.165 254.624)",
+    "500": "oklch(62.3% 0.214 259.815)",
+    "600": "oklch(54.6% 0.245 262.881)",
+    "700": "oklch(48.8% 0.243 264.376)",
+    "800": "oklch(42.4% 0.199 265.638)",
+    "900": "oklch(37.9% 0.146 265.522)",
+    "950": "oklch(28.2% 0.091 267.935)"
+  },
+  "indigo": {
+    "50": "oklch(96.2% 0.018 272.314)",
+    "100": "oklch(93% 0.034 272.788)",
+    "200": "oklch(87% 0.065 274.039)",
+    "300": "oklch(78.5% 0.115 274.713)",
+    "400": "oklch(67.3% 0.182 276.935)",
+    "500": "oklch(58.5% 0.233 277.117)",
+    "600": "oklch(51.1% 0.262 276.966)",
+    "700": "oklch(45.7% 0.24 277.023)",
+    "800": "oklch(39.8% 0.195 277.366)",
+    "900": "oklch(35.9% 0.144 278.697)",
+    "950": "oklch(25.7% 0.09 281.288)"
+  },
+  "violet": {
+    "50": "oklch(96.9% 0.016 293.756)",
+    "100": "oklch(94.3% 0.029 294.588)",
+    "200": "oklch(89.4% 0.057 293.283)",
+    "300": "oklch(81.1% 0.111 293.571)",
+    "400": "oklch(70.2% 0.183 293.541)",
+    "500": "oklch(60.6% 0.25 292.717)",
+    "600": "oklch(54.1% 0.281 293.009)",
+    "700": "oklch(49.1% 0.27 292.581)",
+    "800": "oklch(43.2% 0.232 292.759)",
+    "900": "oklch(38% 0.189 293.745)",
+    "950": "oklch(28.3% 0.141 291.089)"
+  },
+  "purple": {
+    "50": "oklch(97.7% 0.014 308.299)",
+    "100": "oklch(94.6% 0.033 307.174)",
+    "200": "oklch(90.2% 0.063 306.703)",
+    "300": "oklch(82.7% 0.119 306.383)",
+    "400": "oklch(71.4% 0.203 305.504)",
+    "500": "oklch(62.7% 0.265 303.9)",
+    "600": "oklch(55.8% 0.288 302.321)",
+    "700": "oklch(49.6% 0.265 301.924)",
+    "800": "oklch(43.8% 0.218 303.724)",
+    "900": "oklch(38.1% 0.176 304.987)",
+    "950": "oklch(29.1% 0.149 302.717)"
+  },
+  "fuchsia": {
+    "50": "oklch(97.7% 0.017 320.058)",
+    "100": "oklch(95.2% 0.037 318.852)",
+    "200": "oklch(90.3% 0.076 319.62)",
+    "300": "oklch(83.3% 0.145 321.434)",
+    "400": "oklch(74% 0.238 322.16)",
+    "500": "oklch(66.7% 0.295 322.15)",
+    "600": "oklch(59.1% 0.293 322.896)",
+    "700": "oklch(51.8% 0.253 323.949)",
+    "800": "oklch(45.2% 0.211 324.591)",
+    "900": "oklch(40.1% 0.17 325.612)",
+    "950": "oklch(29.3% 0.136 325.661)"
+  },
+  "pink": {
+    "50": "oklch(97.1% 0.014 343.198)",
+    "100": "oklch(94.8% 0.028 342.258)",
+    "200": "oklch(89.9% 0.061 343.231)",
+    "300": "oklch(82.3% 0.12 346.018)",
+    "400": "oklch(71.8% 0.202 349.761)",
+    "500": "oklch(65.6% 0.241 354.308)",
+    "600": "oklch(59.2% 0.249 0.584)",
+    "700": "oklch(52.5% 0.223 3.958)",
+    "800": "oklch(45.9% 0.187 3.815)",
+    "900": "oklch(40.8% 0.153 2.432)",
+    "950": "oklch(28.4% 0.109 3.907)"
+  },
+  "rose": {
+    "50": "oklch(96.9% 0.015 12.422)",
+    "100": "oklch(94.1% 0.03 12.58)",
+    "200": "oklch(89.2% 0.058 10.001)",
+    "300": "oklch(81% 0.117 11.638)",
+    "400": "oklch(71.2% 0.194 13.428)",
+    "500": "oklch(64.5% 0.246 16.439)",
+    "600": "oklch(58.6% 0.253 17.585)",
+    "700": "oklch(51.4% 0.222 16.935)",
+    "800": "oklch(45.5% 0.188 13.697)",
+    "900": "oklch(41% 0.159 10.272)",
+    "950": "oklch(27.1% 0.105 12.094)"
+  },
+  "slate": {
+    "50": "oklch(98.4% 0.003 247.858)",
+    "100": "oklch(96.8% 0.007 247.896)",
+    "200": "oklch(92.9% 0.013 255.508)",
+    "300": "oklch(86.9% 0.022 252.894)",
+    "400": "oklch(70.4% 0.04 256.788)",
+    "500": "oklch(55.4% 0.046 257.417)",
+    "600": "oklch(44.6% 0.043 257.281)",
+    "700": "oklch(37.2% 0.044 257.287)",
+    "800": "oklch(27.9% 0.041 260.031)",
+    "900": "oklch(20.8% 0.042 265.755)",
+    "950": "oklch(12.9% 0.042 264.695)"
+  },
+  "gray": {
+    "50": "oklch(98.5% 0.002 247.839)",
+    "100": "oklch(96.7% 0.003 264.542)",
+    "200": "oklch(92.8% 0.006 264.531)",
+    "300": "oklch(87.2% 0.01 258.338)",
+    "400": "oklch(70.7% 0.022 261.325)",
+    "500": "oklch(55.1% 0.027 264.364)",
+    "600": "oklch(44.6% 0.03 256.802)",
+    "700": "oklch(37.3% 0.034 259.733)",
+    "800": "oklch(27.8% 0.033 256.848)",
+    "900": "oklch(21% 0.034 264.665)",
+    "950": "oklch(13% 0.028 261.692)"
+  },
+  "zinc": {
+    "50": "oklch(98.5% 0 0)",
+    "100": "oklch(96.7% 0.001 286.375)",
+    "200": "oklch(92% 0.004 286.32)",
+    "300": "oklch(87.1% 0.006 286.286)",
+    "400": "oklch(70.5% 0.015 286.067)",
+    "500": "oklch(55.2% 0.016 285.938)",
+    "600": "oklch(44.2% 0.017 285.786)",
+    "700": "oklch(37% 0.013 285.805)",
+    "800": "oklch(27.4% 0.006 286.033)",
+    "900": "oklch(21% 0.006 285.885)",
+    "950": "oklch(14.1% 0.005 285.823)"
+  },
+  "neutral": {
+    "50": "oklch(98.5% 0 0)",
+    "100": "oklch(97% 0 0)",
+    "200": "oklch(92.2% 0 0)",
+    "300": "oklch(87% 0 0)",
+    "400": "oklch(70.8% 0 0)",
+    "500": "oklch(55.6% 0 0)",
+    "600": "oklch(43.9% 0 0)",
+    "700": "oklch(37.1% 0 0)",
+    "800": "oklch(26.9% 0 0)",
+    "900": "oklch(20.5% 0 0)",
+    "950": "oklch(14.5% 0 0)"
+  },
+  "stone": {
+    "50": "oklch(98.5% 0.001 106.423)",
+    "100": "oklch(97% 0.001 106.424)",
+    "200": "oklch(92.3% 0.003 48.717)",
+    "300": "oklch(86.9% 0.005 56.366)",
+    "400": "oklch(70.9% 0.01 56.259)",
+    "500": "oklch(55.3% 0.013 58.071)",
+    "600": "oklch(44.4% 0.011 73.639)",
+    "700": "oklch(37.4% 0.01 67.558)",
+    "800": "oklch(26.8% 0.007 34.298)",
+    "900": "oklch(21.6% 0.006 56.043)",
+    "950": "oklch(14.7% 0.004 49.25)"
+  },
+  "mauve": {
+    "50": "oklch(98.5% 0 0)",
+    "100": "oklch(96% 0.003 325.6)",
+    "200": "oklch(92.2% 0.005 325.62)",
+    "300": "oklch(86.5% 0.012 325.68)",
+    "400": "oklch(71.1% 0.019 323.02)",
+    "500": "oklch(54.2% 0.034 322.5)",
+    "600": "oklch(43.5% 0.029 321.78)",
+    "700": "oklch(36.4% 0.029 323.89)",
+    "800": "oklch(26.3% 0.024 320.12)",
+    "900": "oklch(21.2% 0.019 322.12)",
+    "950": "oklch(14.5% 0.008 326)"
+  },
+  "olive": {
+    "50": "oklch(98.8% 0.003 106.5)",
+    "100": "oklch(96.6% 0.005 106.5)",
+    "200": "oklch(93% 0.007 106.5)",
+    "300": "oklch(88% 0.011 106.6)",
+    "400": "oklch(73.7% 0.021 106.9)",
+    "500": "oklch(58% 0.031 107.3)",
+    "600": "oklch(46.6% 0.025 107.3)",
+    "700": "oklch(39.4% 0.023 107.4)",
+    "800": "oklch(28.6% 0.016 107.4)",
+    "900": "oklch(22.8% 0.013 107.4)",
+    "950": "oklch(15.3% 0.006 107.1)"
+  },
+  "mist": {
+    "50": "oklch(98.7% 0.002 197.1)",
+    "100": "oklch(96.3% 0.002 197.1)",
+    "200": "oklch(92.5% 0.005 214.3)",
+    "300": "oklch(87.2% 0.007 219.6)",
+    "400": "oklch(72.3% 0.014 214.4)",
+    "500": "oklch(56% 0.021 213.5)",
+    "600": "oklch(45% 0.017 213.2)",
+    "700": "oklch(37.8% 0.015 216)",
+    "800": "oklch(27.5% 0.011 216.9)",
+    "900": "oklch(21.8% 0.008 223.9)",
+    "950": "oklch(14.8% 0.004 228.8)"
+  },
+  "taupe": {
+    "50": "oklch(98.6% 0.002 67.8)",
+    "100": "oklch(96% 0.002 17.2)",
+    "200": "oklch(92.2% 0.005 34.3)",
+    "300": "oklch(86.8% 0.007 39.5)",
+    "400": "oklch(71.4% 0.014 41.2)",
+    "500": "oklch(54.7% 0.021 43.1)",
+    "600": "oklch(43.8% 0.017 39.3)",
+    "700": "oklch(36.7% 0.016 35.7)",
+    "800": "oklch(26.8% 0.011 36.5)",
+    "900": "oklch(21.4% 0.009 43.1)",
+    "950": "oklch(14.7% 0.004 49.3)"
+  }
+}`)
+
+const LEGACY_COLOR_FAMILY_ALIASES: Record<string, TailwindColorFamily> = {
+  "220.9 39.3% 11%": "gray",
+  "210 20% 98%": "gray",
+  "12 76% 61%": "gray",
+  "220 70% 50%": "gray",
+}
+
+const TAILWIND_COLOR_VALUE_TO_FAMILY = new Map<string, TailwindColorFamily>()
+
+for (const family of TAILWIND_COLOR_FAMILIES) {
+  for (const scale of TAILWIND_COLOR_SCALES) {
+    TAILWIND_COLOR_VALUE_TO_FAMILY.set(
+      normalizeColorValue(TAILWIND_COLORS[family][scale]),
+      family
+    )
+  }
+}
+
+export function findTailwindColorFamily(
+  value: string | undefined
+) {
+  const normalized = normalizeColorValue(value)
+
+  if (!normalized) {
+    return null
+  }
+
+  return (
+    TAILWIND_COLOR_VALUE_TO_FAMILY.get(normalized) ??
+    LEGACY_COLOR_FAMILY_ALIASES[normalized] ??
+    null
+  )
+}
+
+export function normalizeColorValue(value: string | undefined) {
+  if (!value) {
+    return ""
+  }
+
+  const normalized = value.trim().replace(/\s+/g, " ").toLowerCase()
+
+  if (!normalized.startsWith("oklch(") || !normalized.endsWith(")")) {
+    return normalized
+  }
+
+  const inner = normalized.slice(6, -1).trim()
+  const [color] = inner.split(/\s*\/\s*/)
+  const parts = color.split(/\s+/)
+
+  if (parts.length < 3) {
+    return normalized
+  }
+
+  const lightness = normalizeColorNumber(parts[0], { percentage: true })
+  const chroma = normalizeColorNumber(parts[1])
+  const hue = normalizeColorNumber(parts[2])
+
+  return `oklch(${lightness} ${chroma} ${hue})`
+}
+
+function normalizeColorNumber(
+  value: string,
+  options: {
+    percentage?: boolean
+  } = {}
+) {
+  if (options.percentage && value.endsWith("%")) {
+    return formatColorNumber(Number.parseFloat(value) / 100)
+  }
+
+  return formatColorNumber(Number.parseFloat(value))
+}
+
+function formatColorNumber(value: number) {
+  if (Number.isNaN(value)) {
+    return ""
+  }
+
+  return Number(value.toFixed(12)).toString()
+}

packages/shadcn/src/commands/info.ts

@@ -1,5 +1,6 @@
 import { existsSync } from "fs"
 import path from "path"
+import { resolveProjectPreset } from "@/src/preset/resolve"
 import { SHADCN_URL } from "@/src/registry/constants"
 import { getBase, getConfig } from "@/src/utils/get-config"
 import {
@@ -64,7 +65,7 @@ export const info = new Command()
       const config = await getConfig(cwd)
       const components = await getProjectComponents(cwd)
       const base = getBase(config?.style)
-      const data = collectInfo(projectInfo, config, components, base)
+      const data = await collectInfo(projectInfo, config, components, base)
 
       if (opts.json) {
         console.log(JSON.stringify(data, null, 2))
@@ -91,12 +92,16 @@ function getRegistries(
   return result
 }
 
-function collectInfo(
+export async function collectInfo(
   projectInfo: ProjectInfo | null,
   config: Awaited<ReturnType<typeof getConfig>>,
   components: string[],
   base: string
 ) {
+  const preset = config
+    ? await resolveProjectPreset(config, projectInfo)
+    : null
+
   return {
     project: projectInfo
       ? {
@@ -142,6 +147,7 @@ function collectInfo(
           registries: getRegistries(config.registries),
         }
       : null,
+    preset,
     components,
     links: {
       docs: `${SHADCN_URL}/docs`,
@@ -153,7 +159,7 @@ function collectInfo(
   }
 }
 
-function printInfo(data: ReturnType<typeof collectInfo>) {
+export function printInfo(data: Awaited<ReturnType<typeof collectInfo>>) {
   // Project.
   logger.log(highlighter.info("Project"))
   if (data.project) {
@@ -187,6 +193,29 @@ function printInfo(data: ReturnType<typeof collectInfo>) {
       menuAccent: data.config.menuAccent ?? "-",
     })
 
+    logger.break()
+    logger.log(highlighter.info("Preset"))
+    if (!data.preset?.code) {
+      printEntries({
+        "--preset": "-",
+      })
+    } else {
+      printEntries({
+        "--preset": data.preset.code,
+        url: `${SHADCN_URL}/create?preset=${data.preset.code}`,
+        style: data.preset.values?.style ?? "-",
+        baseColor: data.preset.values?.baseColor ?? "-",
+        theme: data.preset.values?.theme ?? "-",
+        chartColor: data.preset.values?.chartColor ?? "-",
+        iconLibrary: data.preset.values?.iconLibrary ?? "-",
+        font: data.preset.values?.font ?? "-",
+        fontHeading: data.preset.values?.fontHeading ?? "-",
+        radius: data.preset.values?.radius ?? "-",
+        menuAccent: data.preset.values?.menuAccent ?? "-",
+        menuColor: data.preset.values?.menuColor ?? "-",
+      })
+    }
+
     // Aliases.
     logger.break()
     logger.log(highlighter.info("Aliases"))

packages/shadcn/src/preset/defaults.ts

@@ -0,0 +1,101 @@
+import type { PresetConfig } from "./preset"
+
+export const DEFAULT_PRESETS = {
+  nova: {
+    title: "Nova",
+    description: "Lucide / Geist",
+    style: "nova",
+    baseColor: "neutral",
+    theme: "neutral",
+    chartColor: "neutral",
+    iconLibrary: "lucide",
+    font: "geist",
+    fontHeading: "inherit",
+    menuAccent: "subtle",
+    menuColor: "default",
+    radius: "default",
+    rtl: false,
+  },
+  vega: {
+    title: "Vega",
+    description: "Lucide / Inter",
+    style: "vega",
+    baseColor: "neutral",
+    theme: "neutral",
+    chartColor: "neutral",
+    iconLibrary: "lucide",
+    font: "inter",
+    fontHeading: "inherit",
+    menuAccent: "subtle",
+    menuColor: "default",
+    radius: "default",
+    rtl: false,
+  },
+  maia: {
+    title: "Maia",
+    description: "Hugeicons / Figtree",
+    style: "maia",
+    baseColor: "neutral",
+    theme: "neutral",
+    chartColor: "neutral",
+    iconLibrary: "hugeicons",
+    font: "figtree",
+    fontHeading: "inherit",
+    menuAccent: "subtle",
+    menuColor: "default",
+    radius: "default",
+    rtl: false,
+  },
+  lyra: {
+    title: "Lyra",
+    description: "Phosphor / JetBrains Mono",
+    style: "lyra",
+    baseColor: "neutral",
+    theme: "neutral",
+    chartColor: "neutral",
+    iconLibrary: "phosphor",
+    font: "jetbrains-mono",
+    fontHeading: "inherit",
+    menuAccent: "subtle",
+    menuColor: "default",
+    radius: "default",
+    rtl: false,
+  },
+  mira: {
+    title: "Mira",
+    description: "Hugeicons / Inter",
+    style: "mira",
+    baseColor: "neutral",
+    theme: "neutral",
+    chartColor: "neutral",
+    iconLibrary: "hugeicons",
+    font: "inter",
+    fontHeading: "inherit",
+    menuAccent: "subtle",
+    menuColor: "default",
+    radius: "default",
+    rtl: false,
+  },
+  luma: {
+    title: "Luma",
+    description: "Lucide / Inter",
+    style: "luma",
+    baseColor: "neutral",
+    theme: "neutral",
+    chartColor: "neutral",
+    iconLibrary: "lucide",
+    font: "inter",
+    fontHeading: "inherit",
+    menuAccent: "subtle",
+    menuColor: "default",
+    radius: "default",
+    rtl: false,
+  },
+} satisfies Record<
+  PresetConfig["style"],
+  PresetConfig & {
+    description: string
+    rtl: boolean
+    title: string
+  }
+>

packages/shadcn/src/preset/presets.test.ts

@@ -79,6 +79,12 @@ describe("buildInitUrl", () => {
     expect(parsed.searchParams.get("chartColor")).toBe("emerald")
   })
 
+  it("should not include chartColor when it is neutral", () => {
+    const url = resolveInitUrl({ ...mockPreset, chartColor: "neutral" })
+    const parsed = new URL(url)
+    expect(parsed.searchParams.has("chartColor")).toBe(false)
+  })
+
   it("should not include chartColor when not provided", () => {
     const url = resolveInitUrl(mockPreset)
     const parsed = new URL(url)

packages/shadcn/src/preset/presets.ts

@@ -11,99 +11,9 @@ import { ensureRegistriesInConfig } from "@/src/utils/registries"
 import open from "open"
 import prompts from "prompts"
 import { type z } from "zod"
+import { DEFAULT_PRESETS } from "./defaults"
 
-export const DEFAULT_PRESETS = {
-  nova: {
-    title: "Nova",
-    description: "Lucide / Geist",
-    style: "nova",
-    baseColor: "neutral",
-    theme: "neutral",
-    iconLibrary: "lucide",
-    font: "geist",
-    fontHeading: "inherit",
-    menuAccent: "subtle" as const,
-    menuColor: "default" as const,
-
-    radius: "default",
-    rtl: false,
-  },
-  vega: {
-    title: "Vega",
-    description: "Lucide / Inter",
-    style: "vega",
-    baseColor: "neutral",
-    theme: "neutral",
-    iconLibrary: "lucide",
-    font: "inter",
-    fontHeading: "inherit",
-    menuAccent: "subtle" as const,
-    menuColor: "default" as const,
-
-    radius: "default",
-    rtl: false,
-  },
-  maia: {
-    title: "Maia",
-    description: "Hugeicons / Figtree",
-    style: "maia",
-    baseColor: "neutral",
-    theme: "neutral",
-    iconLibrary: "hugeicons",
-    font: "figtree",
-    fontHeading: "inherit",
-    menuAccent: "subtle" as const,
-    menuColor: "default" as const,
-
-    radius: "default",
-    rtl: false,
-  },
-  lyra: {
-    title: "Lyra",
-    description: "Phosphor / JetBrains Mono",
-    style: "lyra",
-    baseColor: "neutral",
-    theme: "neutral",
-    iconLibrary: "phosphor",
-    font: "jetbrains-mono",
-    fontHeading: "inherit",
-    menuAccent: "subtle" as const,
-    menuColor: "default" as const,
-
-    radius: "default",
-    rtl: false,
-  },
-  mira: {
-    title: "Mira",
-    description: "Hugeicons / Inter",
-    style: "mira",
-    baseColor: "neutral",
-    theme: "neutral",
-    iconLibrary: "hugeicons",
-    font: "inter",
-    fontHeading: "inherit",
-    menuAccent: "subtle" as const,
-    menuColor: "default" as const,
-
-    radius: "default",
-    rtl: false,
-  },
-  luma: {
-    title: "Luma",
-    description: "Lucide / Inter",
-    style: "luma",
-    baseColor: "neutral",
-    theme: "neutral",
-    iconLibrary: "lucide",
-    font: "inter",
-    fontHeading: "inherit",
-    menuAccent: "subtle" as const,
-    menuColor: "default" as const,
-
-    radius: "default",
-    rtl: false,
-  },
-}
+export { DEFAULT_PRESETS } from "./defaults"
 
 export function resolveCreateUrl(
   searchParams?: Partial<{
@@ -188,7 +98,7 @@ export function resolveInitUrl(
     radius: preset.radius,
   })
 
-  if (preset.chartColor) {
+  if (preset.chartColor && preset.chartColor !== "neutral") {
     params.set("chartColor", preset.chartColor)
   }
 

packages/shadcn/src/preset/resolve.test.ts

@@ -0,0 +1,275 @@
+import { promises as fs } from "fs"
+import os from "os"
+import path from "path"
+import { createConfig } from "@/src/utils/get-config"
+import { FRAMEWORKS } from "@/src/utils/frameworks"
+import { afterEach, describe, expect, it } from "vitest"
+
+import { resolveProjectPreset } from "./resolve"
+import { encodePreset, type PresetConfig } from "./preset"
+
+const tempDirs: string[] = []
+const presetCssWithHeadingFont = `@import "@fontsource-variable/inter";
+@import "@fontsource-variable/lora";
+
+:root {
+  --radius: 0.875rem;
+  --primary: oklch(0.488 0.243 264.376);
+  --primary-foreground: oklch(0.97 0.014 254.604);
+  --sidebar-primary: oklch(0.546 0.245 262.881);
+  --sidebar-primary-foreground: oklch(0.97 0.014 254.604);
+  --chart-1: oklch(0.845 0.143 164.978);
+  --chart-2: oklch(0.696 0.17 162.48);
+  --chart-3: oklch(0.596 0.145 163.225);
+  --chart-4: oklch(0.508 0.118 165.612);
+  --chart-5: oklch(0.432 0.095 166.913);
+}
+
+.dark {
+  --primary: oklch(0.424 0.199 265.638);
+  --primary-foreground: oklch(0.97 0.014 254.604);
+  --sidebar-primary: oklch(0.623 0.214 259.815);
+  --sidebar-primary-foreground: oklch(0.97 0.014 254.604);
+  --chart-1: oklch(0.845 0.143 164.978);
+  --chart-2: oklch(0.696 0.17 162.48);
+  --chart-3: oklch(0.596 0.145 163.225);
+  --chart-4: oklch(0.508 0.118 165.612);
+  --chart-5: oklch(0.432 0.095 166.913);
+}
+
+@theme inline {
+  --font-sans: "Inter Variable", sans-serif;
+  --font-heading: "Lora Variable", serif;
+}`
+
+async function createTestConfig(options: {
+  css: string
+  style?: string
+  baseColor?: string
+  iconLibrary?: string
+  menuColor?: PresetConfig["menuColor"]
+  menuAccent?: PresetConfig["menuAccent"]
+  files?: Record<string, string>
+}) {
+  const tempDir = await fs.mkdtemp(path.join(os.tmpdir(), "shadcn-preset-"))
+  tempDirs.push(tempDir)
+
+  const tailwindCss = path.join(tempDir, "globals.css")
+  await fs.writeFile(tailwindCss, options.css, "utf8")
+
+  for (const [relativePath, content] of Object.entries(options.files ?? {})) {
+    const filePath = path.join(tempDir, relativePath)
+    await fs.mkdir(path.dirname(filePath), { recursive: true })
+    await fs.writeFile(filePath, content, "utf8")
+  }
+
+  return createConfig({
+    style: options.style ?? "base-luma",
+    tailwind: {
+      css: "globals.css",
+      baseColor: options.baseColor ?? "mist",
+      cssVariables: true,
+      prefix: "",
+      config: "",
+    },
+    iconLibrary: options.iconLibrary ?? "phosphor",
+    menuColor: options.menuColor ?? "inverted",
+    menuAccent: options.menuAccent ?? "bold",
+    aliases: {
+      components: "@/components",
+      utils: "@/lib/utils",
+    },
+    resolvedPaths: {
+      cwd: tempDir,
+      tailwindCss,
+    },
+  })
+}
+
+afterEach(async () => {
+  await Promise.all(
+    tempDirs
+      .splice(0)
+      .map((dir) => fs.rm(dir, { recursive: true, force: true }))
+  )
+})
+
+describe("resolveProjectPreset", () => {
+  it("derives preset values and code from project css", async () => {
+    const config = await createTestConfig({
+      css: presetCssWithHeadingFont,
+    })
+
+    const result = await resolveProjectPreset(config)
+
+    expect(result.values).toEqual({
+      style: "luma",
+      baseColor: "mist",
+      theme: "blue",
+      chartColor: "emerald",
+      iconLibrary: "phosphor",
+      font: "inter",
+      fontHeading: "lora",
+      radius: "large",
+      menuAccent: "bold",
+      menuColor: "inverted",
+    })
+    expect(result.code).toBe(encodePreset(result.values!))
+  })
+
+  it("falls back to preset defaults when css values cannot be matched", async () => {
+    const config = await createTestConfig({
+      css: `:root {
+  --radius: 1rem;
+  --primary: hotpink;
+  --chart-1: tomato;
+}
+
+.dark {
+  --primary: rebeccapurple;
+  --chart-1: orange;
+}
+
+@theme inline {
+  --font-sans: var(--font-sans);
+}`,
+      menuAccent: "subtle",
+      menuColor: "default",
+    })
+
+    const result = await resolveProjectPreset(config)
+
+    expect(result.values).toEqual({
+      style: "luma",
+      baseColor: "mist",
+      theme: "neutral",
+      chartColor: "neutral",
+      iconLibrary: "phosphor",
+      font: "inter",
+      fontHeading: "inherit",
+      radius: "default",
+      menuAccent: "subtle",
+      menuColor: "default",
+    })
+    expect(result.code).toBe(encodePreset(result.values!))
+  })
+
+  it("derives body and heading fonts from next/font declarations in layout.tsx", async () => {
+    const config = await createTestConfig({
+      css: `:root {
+  --radius: 0.875rem;
+  --primary: oklch(0.623 0.214 259.815);
+  --chart-1: oklch(0.696 0.17 162.48);
+}
+
+.dark {
+  --primary: oklch(0.623 0.214 259.815);
+  --chart-1: oklch(0.696 0.17 162.48);
+}
+
+@theme inline {
+  --font-sans: var(--font-sans);
+  --font-heading: var(--font-heading);
+}`,
+      files: {
+        "src/app/layout.tsx": `import { Inter, Lora } from "next/font/google"
+
+const inter = Inter({ subsets: ["latin"], variable: "--font-sans" })
+const loraHeading = Lora({ subsets: ["latin"], variable: "--font-heading" })
+
+export default function RootLayout({
+  children,
+}: {
+  children: React.ReactNode
+}) {
+  return (
+    <html lang="en" className={\`font-sans \${inter.variable} \${loraHeading.variable}\`}>
+      <body>{children}</body>
+    </html>
+  )
+}`,
+      },
+    })
+
+    const result = await resolveProjectPreset(config, {
+      framework: FRAMEWORKS["next-app"],
+      isSrcDir: true,
+      isRSC: true,
+      isTsx: true,
+      tailwindConfigFile: null,
+      tailwindCssFile: config.resolvedPaths.tailwindCss,
+      tailwindVersion: "v4",
+      frameworkVersion: "16.0.0",
+      aliasPrefix: "@",
+    })
+
+    expect(result.values).toMatchObject({
+      style: "luma",
+      theme: "blue",
+      chartColor: "emerald",
+      font: "inter",
+      fontHeading: "lora",
+      radius: "large",
+    })
+    expect(result.code).toBe(encodePreset(result.values!))
+  })
+
+  it("derives body font from next-pages _app when only one root font is defined", async () => {
+    const config = await createTestConfig({
+      css: `:root {
+  --radius: 0.625rem;
+  --primary: oklch(0.205 0 0);
+  --chart-1: oklch(0.87 0 0);
+}
+
+.dark {
+  --primary: oklch(0.205 0 0);
+  --chart-1: oklch(0.87 0 0);
+}
+
+@theme inline {
+  --font-sans: var(--font-sans);
+}`,
+      files: {
+        "src/pages/_app.tsx": `import { Inter } from "next/font/google"
+
+const inter = Inter({ subsets: ["latin"], variable: "--font-sans" })
+
+export default function App({ Component, pageProps }) {
+  return <main className={inter.variable}><Component {...pageProps} /></main>
+}`,
+      },
+    })
+
+    const result = await resolveProjectPreset(config, {
+      framework: FRAMEWORKS["next-pages"],
+      isSrcDir: true,
+      isRSC: false,
+      isTsx: true,
+      tailwindConfigFile: null,
+      tailwindCssFile: config.resolvedPaths.tailwindCss,
+      tailwindVersion: "v4",
+      frameworkVersion: "16.0.0",
+      aliasPrefix: "@",
+    })
+
+    expect(result.values).toMatchObject({
+      style: "luma",
+      font: "inter",
+      fontHeading: "inherit",
+    })
+    expect(result.code).toBe(encodePreset(result.values!))
+  })
+
+  it("returns null for unsupported legacy styles", async () => {
+    const config = await createTestConfig({
+      style: "new-york",
+      css: `:root { --radius: 0.625rem; }`,
+    })
+
+    await expect(resolveProjectPreset(config)).resolves.toEqual({
+      code: null,
+      values: null,
+    })
+  })
+})

packages/shadcn/src/preset/resolve.ts

@@ -0,0 +1,773 @@
+import { existsSync, promises as fs } from "fs"
+import path from "path"
+import { findTailwindColorFamily } from "@/src/colors"
+import {
+  getProjectInfo,
+  type ProjectInfo,
+} from "@/src/utils/get-project-info"
+import type { Config } from "@/src/utils/get-config"
+import postcss from "postcss"
+import { Node, Project, ScriptKind, SyntaxKind } from "ts-morph"
+
+import { DEFAULT_PRESETS } from "./defaults"
+import {
+  encodePreset,
+  PRESET_BASE_COLORS,
+  PRESET_FONTS,
+  PRESET_FONT_HEADINGS,
+  PRESET_ICON_LIBRARIES,
+  PRESET_MENU_ACCENTS,
+  PRESET_MENU_COLORS,
+  PRESET_THEMES,
+  type PresetConfig,
+} from "./preset"
+
+const PRESET_BASE_COLOR_SET = new Set<string>(PRESET_BASE_COLORS)
+const PRESET_ICON_LIBRARY_SET = new Set<string>(PRESET_ICON_LIBRARIES)
+const PRESET_MENU_ACCENT_SET = new Set<string>(PRESET_MENU_ACCENTS)
+const PRESET_MENU_COLOR_SET = new Set<string>(PRESET_MENU_COLORS)
+const PRESET_FONT_SET = new Set<string>(PRESET_FONTS)
+const PRESET_FONT_HEADING_SET = new Set<string>(PRESET_FONT_HEADINGS)
+const PRESET_THEME_SET = new Set<string>(PRESET_THEMES)
+const SERIF_FONTS = new Set<PresetConfig["font"]>([
+  "lora",
+  "merriweather",
+  "playfair-display",
+  "noto-serif",
+  "roboto-slab",
+])
+const MONO_FONTS = new Set<PresetConfig["font"]>([
+  "jetbrains-mono",
+  "geist-mono",
+])
+const ROOT_FONT_VARIABLES = [
+  "--font-sans",
+  "--font-serif",
+  "--font-mono",
+] as const
+type RootFontVariable = (typeof ROOT_FONT_VARIABLES)[number]
+const ROOT_FONT_VARIABLE_SET = new Set<string>(ROOT_FONT_VARIABLES)
+const FONT_VARIABLES = [
+  ...ROOT_FONT_VARIABLES,
+  "--font-heading",
+] as const
+type FontVariable = (typeof FONT_VARIABLES)[number]
+const FONT_VARIABLE_SET = new Set<string>(FONT_VARIABLES)
+type CssState = {
+  darkVars: Record<string, string>
+  imports: string[]
+  rootVars: Record<string, string>
+  themeVars: Record<string, string>
+}
+type NextFontState = {
+  appliedBodyVariable: RootFontVariable | null
+  variables: Partial<Record<FontVariable, PresetConfig["font"]>>
+}
+const RADIUS_MAP: Record<string, PresetConfig["radius"]> = {
+  "0": "none",
+  "0rem": "none",
+  "0.45rem": "small",
+  "0.625rem": "default",
+  "0.875rem": "large",
+}
+
+export async function resolveProjectPreset(
+  config: Config,
+  projectInfo?: ProjectInfo | null
+) {
+  const style = normalizePresetStyle(config.style)
+  if (!style) {
+    return { code: null, values: null }
+  }
+
+  const defaults = DEFAULT_PRESETS[style]
+  const cssState = await readCssState(config.resolvedPaths.tailwindCss)
+  let resolvedProjectInfo = projectInfo
+  if (projectInfo === undefined) {
+    // Most callers already have project info. This keeps the resolver usable
+    // in isolation without forcing them to fetch it first.
+    try {
+      resolvedProjectInfo = await getProjectInfo(config.resolvedPaths.cwd, {
+        configCssFile: config.tailwind.css,
+      })
+    } catch {
+      resolvedProjectInfo = null
+    }
+  }
+  const nextFonts = await readNextFontState(config, resolvedProjectInfo)
+
+  const font = resolveBodyFont(cssState, nextFonts) ?? defaults.font
+  const fontHeading = normalizeFontHeading(
+    resolveHeadingFont(cssState, font, nextFonts) ?? defaults.fontHeading,
+    font,
+    defaults.fontHeading
+  )
+
+  const values = {
+    style,
+    baseColor: asPresetBaseColor(config.tailwind.baseColor) ?? defaults.baseColor,
+    theme: matchTheme(cssState) ?? defaults.theme,
+    chartColor: matchChartColor(cssState) ?? defaults.chartColor,
+    iconLibrary:
+      asPresetIconLibrary(config.iconLibrary) ?? defaults.iconLibrary,
+    font,
+    fontHeading,
+    radius: matchRadius(cssState.rootVars["--radius"]) ?? defaults.radius,
+    menuAccent:
+      asPresetMenuAccent(config.menuAccent) ?? defaults.menuAccent,
+    menuColor: asPresetMenuColor(config.menuColor) ?? defaults.menuColor,
+  } satisfies PresetConfig
+
+  return {
+    code: encodePreset(values),
+    values,
+  }
+}
+
+async function readCssState(tailwindCssPath?: string) {
+  const fallbackState: CssState = {
+    darkVars: {},
+    imports: [],
+    rootVars: {},
+    themeVars: {},
+  }
+
+  if (!tailwindCssPath) {
+    return fallbackState
+  }
+
+  try {
+    const input = await fs.readFile(tailwindCssPath, "utf8")
+    return extractCssState(input)
+  } catch {
+    return fallbackState
+  }
+}
+
+function normalizePresetStyle(style: string | undefined) {
+  if (!style) {
+    return null
+  }
+
+  const normalized = style.replace(/^(base|radix)-/, "")
+  if (!(normalized in DEFAULT_PRESETS)) {
+    return null
+  }
+
+  return normalized as keyof typeof DEFAULT_PRESETS
+}
+
+function extractCssState(input: string) {
+  const root = postcss.parse(input)
+  const state: CssState = {
+    darkVars: {},
+    imports: [],
+    rootVars: {},
+    themeVars: {},
+  }
+
+  root.walkAtRules("import", (atRule) => {
+    const source = parseImportSource(atRule.params)
+    if (source) {
+      state.imports.push(source)
+    }
+  })
+
+  root.walkRules((rule) => {
+    const selectors = rule.selector
+      .split(",")
+      .map((selector) => selector.trim())
+      .filter(Boolean)
+
+    if (selectors.includes(":root")) {
+      collectDeclarations(rule, state.rootVars)
+    }
+
+    if (selectors.includes(".dark")) {
+      collectDeclarations(rule, state.darkVars)
+    }
+  })
+
+  root.walkAtRules("theme", (atRule) => {
+    if (atRule.params.trim() !== "inline") {
+      return
+    }
+
+    collectDeclarations(atRule, state.themeVars)
+  })
+
+  return state
+}
+
+function collectDeclarations(
+  node: { nodes?: postcss.ChildNode[] },
+  target: Record<string, string>
+) {
+  for (const child of node.nodes ?? []) {
+    if (child.type !== "decl" || !child.prop.startsWith("--")) {
+      continue
+    }
+
+    target[child.prop] = child.value.trim()
+  }
+}
+
+function parseImportSource(params: string) {
+  const normalized = params.trim()
+  const match =
+    normalized.match(/^url\((['"]?)(.+?)\1\)$/) ??
+    normalized.match(/^(['"])(.+?)\1$/)
+
+  return match?.[2] ?? null
+}
+
+function matchTheme(state: CssState) {
+  const lightTheme = matchPresetThemeValue(state.rootVars["--primary"])
+  if (!lightTheme) {
+    return null
+  }
+
+  const darkPrimary = state.darkVars["--primary"]
+  if (!darkPrimary) {
+    return lightTheme
+  }
+
+  const darkTheme = matchPresetThemeValue(darkPrimary)
+  return darkTheme === lightTheme ? lightTheme : null
+}
+
+function matchChartColor(state: CssState) {
+  const lightChartColor = matchPresetThemeValue(state.rootVars["--chart-1"])
+  if (!lightChartColor) {
+    return null
+  }
+
+  const darkChartColorValue = state.darkVars["--chart-1"]
+  if (!darkChartColorValue) {
+    return lightChartColor
+  }
+
+  const darkChartColor = matchPresetThemeValue(darkChartColorValue)
+  return darkChartColor === lightChartColor ? lightChartColor : null
+}
+
+function matchPresetThemeValue(value: string | undefined) {
+  const family = findTailwindColorFamily(value)
+
+  if (!family || !PRESET_THEME_SET.has(family)) {
+    return null
+  }
+
+  return family as PresetConfig["theme"]
+}
+
+function matchRadius(value: string | undefined) {
+  if (!value) {
+    return null
+  }
+
+  const normalized = normalizeCssValue(value)
+  return RADIUS_MAP[normalized] ?? null
+}
+
+function resolveBodyFont(state: CssState, nextFonts: NextFontState) {
+  for (const variable of ROOT_FONT_VARIABLES) {
+    const matched = matchFontFromVariable(state, variable)
+    if (matched) {
+      return matched
+    }
+  }
+
+  for (const variable of ROOT_FONT_VARIABLES) {
+    const imported = matchFontByImports(state.imports, variable)
+    if (imported) {
+      return imported
+    }
+  }
+
+  return matchNextBodyFont(nextFonts)
+}
+
+function resolveHeadingFont(
+  state: CssState,
+  bodyFont: PresetConfig["font"],
+  nextFonts: NextFontState
+) {
+  const resolved = resolveFontValue(state, "--font-heading")
+  const matched = resolved ? parseFontFromFamily(resolved) : null
+  if (matched) {
+    return matched === bodyFont ? "inherit" : matched
+  }
+
+  const nextHeadingFont = nextFonts.variables["--font-heading"]
+  const value = getCssVariableValue(state, "--font-heading")
+  if (!value) {
+    return nextHeadingFont && nextHeadingFont !== bodyFont
+      ? nextHeadingFont
+      : null
+  }
+
+  const reference = getVarReference(value)
+  if (reference && ROOT_FONT_VARIABLE_SET.has(reference)) {
+    const rootFont = matchFontFromVariable(
+      state,
+      reference as RootFontVariable
+    )
+    const nextRootFont = nextFonts.variables[reference as RootFontVariable]
+    const resolvedRootFont = rootFont ?? nextRootFont ?? null
+
+    if (!resolvedRootFont || resolvedRootFont === bodyFont) {
+      return "inherit"
+    }
+
+    return resolvedRootFont
+  }
+
+  if (reference === "--font-heading") {
+    if (!nextHeadingFont || nextHeadingFont === bodyFont) {
+      return "inherit"
+    }
+
+    return nextHeadingFont
+  }
+
+  return nextHeadingFont && nextHeadingFont !== bodyFont
+    ? nextHeadingFont
+    : null
+}
+
+function normalizeFontHeading(
+  fontHeading: PresetConfig["fontHeading"],
+  bodyFont: PresetConfig["font"],
+  fallback: PresetConfig["fontHeading"]
+) {
+  const normalized = fontHeading === bodyFont ? "inherit" : fontHeading
+  return PRESET_FONT_HEADING_SET.has(normalized) ? normalized : fallback
+}
+
+function resolveFontValue(
+  state: CssState,
+  variable: FontVariable,
+  seen = new Set<string>()
+) {
+  if (seen.has(variable)) {
+    return null
+  }
+
+  seen.add(variable)
+
+  const value = getCssVariableValue(state, variable)
+  if (!value) {
+    return null
+  }
+
+  const reference = getVarReference(value)
+  if (!reference) {
+    return value
+  }
+
+  if (FONT_VARIABLE_SET.has(reference)) {
+    return resolveFontValue(state, reference as FontVariable, seen)
+  }
+
+  return null
+}
+
+function getCssVariableValue(state: CssState, variable: FontVariable) {
+  return state.themeVars[variable] ?? state.rootVars[variable] ?? null
+}
+
+function getVarReference(value: string) {
+  const normalized = normalizeCssValue(value)
+  const match = normalized.match(/^var\((--[a-z0-9-]+)\)$/)
+  return match?.[1] ?? null
+}
+
+function matchFontFromVariable(state: CssState, variable: RootFontVariable) {
+  const resolved = resolveFontValue(state, variable)
+  const matched = resolved ? parseFontFromFamily(resolved) : null
+  if (matched) {
+    return matched
+  }
+
+  return null
+}
+
+function matchFontByImports(imports: string[], variable: RootFontVariable) {
+  const matches = imports.flatMap((input) => {
+    const font = parseFontFromDependency(input)
+    return font && getFontVariable(font) === variable ? [font] : []
+  })
+
+  return matches.length === 1 ? matches[0] : null
+}
+
+function matchNextBodyFont(nextFonts: NextFontState) {
+  if (
+    nextFonts.appliedBodyVariable &&
+    nextFonts.variables[nextFonts.appliedBodyVariable]
+  ) {
+    return nextFonts.variables[nextFonts.appliedBodyVariable] ?? null
+  }
+
+  const matches = ROOT_FONT_VARIABLES.map(
+    (variable) => nextFonts.variables[variable]
+  )
+    .filter(Boolean)
+    .filter((font, index, allFonts) => allFonts.indexOf(font) === index) as
+    PresetConfig["font"][]
+
+  return matches.length === 1 ? matches[0] : null
+}
+
+async function readNextFontState(
+  config: Config,
+  projectInfo: ProjectInfo | null | undefined
+) {
+  const fallbackState: NextFontState = {
+    appliedBodyVariable: null,
+    variables: {},
+  }
+
+  if (
+    !projectInfo ||
+    (projectInfo.framework.name !== "next-app" &&
+      projectInfo.framework.name !== "next-pages")
+  ) {
+    return fallbackState
+  }
+
+  const sourcePath = findNextFontSourceFile(config, projectInfo)
+  if (!sourcePath) {
+    return fallbackState
+  }
+
+  try {
+    const input = await fs.readFile(sourcePath, "utf8")
+    return extractNextFontState(input, projectInfo.framework.name)
+  } catch {
+    return fallbackState
+  }
+}
+
+function findNextFontSourceFile(
+  config: Config,
+  projectInfo: ProjectInfo
+) {
+  const ext = projectInfo.isTsx ? "tsx" : "jsx"
+  const candidates =
+    projectInfo.framework.name === "next-app"
+      ? projectInfo.isSrcDir
+        ? [`src/app/layout.${ext}`, `app/layout.${ext}`]
+        : [`app/layout.${ext}`]
+      : projectInfo.isSrcDir
+        ? [`src/pages/_app.${ext}`, `pages/_app.${ext}`]
+        : [`pages/_app.${ext}`]
+
+  for (const relativePath of candidates) {
+    const fullPath = path.join(config.resolvedPaths.cwd, relativePath)
+    if (existsSync(fullPath)) {
+      return fullPath
+    }
+  }
+
+  return null
+}
+
+function extractNextFontState(
+  input: string,
+  framework: ProjectInfo["framework"]["name"]
+) {
+  const project = new Project({
+    compilerOptions: {},
+  })
+  const sourceFile = project.createSourceFile("font-source.tsx", input, {
+    overwrite: true,
+    scriptKind: ScriptKind.TSX,
+  })
+
+  const importedFonts = new Map<string, PresetConfig["font"]>()
+  for (const declaration of sourceFile.getImportDeclarations()) {
+    if (declaration.getModuleSpecifierValue() !== "next/font/google") {
+      continue
+    }
+
+    for (const namedImport of declaration.getNamedImports()) {
+      const importedName = namedImport.getName()
+      const localName = namedImport.getAliasNode()?.getText() ?? importedName
+      const font = parseFontFromNextImport(importedName)
+      if (font) {
+        importedFonts.set(localName, font)
+      }
+    }
+  }
+
+  const variables: NextFontState["variables"] = {}
+  const declarations = new Map<string, FontVariable>()
+
+  for (const statement of sourceFile.getVariableStatements()) {
+    for (const declaration of statement.getDeclarations()) {
+      const initializer = declaration.getInitializer()
+      if (!initializer?.isKind(SyntaxKind.CallExpression)) {
+        continue
+      }
+
+      const font = importedFonts.get(initializer.getExpression().getText())
+      if (!font) {
+        continue
+      }
+
+      const variable = getNextFontVariable(initializer)
+      if (!variable) {
+        continue
+      }
+
+      declarations.set(declaration.getName(), variable)
+      variables[variable] = font
+    }
+  }
+
+  return {
+    appliedBodyVariable: getAppliedBodyVariable(sourceFile, declarations, framework),
+    variables,
+  }
+}
+
+function getNextFontVariable(
+  callExpression: Node & { getArguments(): Node[] }
+) {
+  const firstArg = callExpression.getArguments()[0]
+  if (!firstArg || !Node.isObjectLiteralExpression(firstArg)) {
+    return null
+  }
+
+  const property = firstArg.getProperty("variable")
+  if (!property || !Node.isPropertyAssignment(property)) {
+    return null
+  }
+
+  const initializer = property.getInitializer()
+  if (!initializer) {
+    return null
+  }
+
+  const variable = stripQuotes(initializer.getText())
+  if (!FONT_VARIABLE_SET.has(variable)) {
+    return null
+  }
+
+  return variable as FontVariable
+}
+
+function getAppliedBodyVariable(
+  sourceFile: ReturnType<Project["createSourceFile"]>,
+  declarations: Map<string, FontVariable>,
+  framework: ProjectInfo["framework"]["name"]
+) {
+  const elements = sourceFile
+    .getDescendantsOfKind(SyntaxKind.JsxOpeningElement)
+    .filter((element) =>
+      framework === "next-app"
+        ? element.getTagNameNode().getText() === "html"
+        : true
+    )
+
+  const discovered = new Set<RootFontVariable>()
+
+  for (const element of elements) {
+    const className = element.getAttribute("className")
+    if (!className || !Node.isJsxAttribute(className)) {
+      continue
+    }
+
+    const initializer = className.getInitializer()
+    if (!initializer) {
+      continue
+    }
+
+    const appliedVariables = getAppliedFontVariables(initializer, declarations)
+    const utilityVariable = getAppliedBodyUtilityVariable(initializer)
+
+    if (
+      utilityVariable &&
+      appliedVariables.includes(utilityVariable)
+    ) {
+      return utilityVariable
+    }
+
+    if (appliedVariables.length === 1) {
+      discovered.add(appliedVariables[0])
+    }
+  }
+
+  return discovered.size === 1 ? Array.from(discovered)[0] : null
+}
+
+function getAppliedFontVariables(
+  initializer: Node,
+  declarations: Map<string, FontVariable>
+) {
+  const expressions = Node.isJsxExpression(initializer)
+    ? [
+        initializer.getExpression(),
+        ...initializer.getDescendantsOfKind(SyntaxKind.PropertyAccessExpression),
+      ].filter(Boolean)
+    : []
+
+  const variables = new Set<RootFontVariable>()
+
+  for (const expression of expressions) {
+    if (!expression || !Node.isPropertyAccessExpression(expression)) {
+      continue
+    }
+
+    if (expression.getName() !== "variable") {
+      continue
+    }
+
+    const target = expression.getExpression().getText()
+    const variable = declarations.get(target)
+    if (variable && ROOT_FONT_VARIABLE_SET.has(variable)) {
+      variables.add(variable as RootFontVariable)
+    }
+  }
+
+  return Array.from(variables)
+}
+
+function getAppliedBodyUtilityVariable(initializer: Node) {
+  const text = getStringContent(initializer)
+
+  if (/\bfont-sans\b/.test(text)) {
+    return "--font-sans" as const
+  }
+
+  if (/\bfont-serif\b/.test(text)) {
+    return "--font-serif" as const
+  }
+
+  if (/\bfont-mono\b/.test(text)) {
+    return "--font-mono" as const
+  }
+
+  return null
+}
+
+function getStringContent(node: Node) {
+  const fragments: string[] = []
+
+  if (Node.isStringLiteral(node) || Node.isNoSubstitutionTemplateLiteral(node)) {
+    fragments.push(node.getLiteralValue())
+  }
+
+  for (const literal of node.getDescendantsOfKind(SyntaxKind.StringLiteral)) {
+    fragments.push(literal.getLiteralValue())
+  }
+
+  for (const literal of node.getDescendantsOfKind(
+    SyntaxKind.NoSubstitutionTemplateLiteral
+  )) {
+    fragments.push(literal.getLiteralValue())
+  }
+
+  return fragments.length > 0 ? fragments.join(" ") : node.getText()
+}
+
+function stripQuotes(value: string) {
+  return value.replace(/^['"]|['"]$/g, "")
+}
+
+function parseFontFromFamily(value: string | undefined) {
+  if (!value) {
+    return null
+  }
+
+  const primaryFamily = stripQuotes(value.split(",")[0]?.trim() ?? "")
+    .replace(/\s+variable$/i, "")
+    .trim()
+
+  if (!primaryFamily) {
+    return null
+  }
+
+  return toPresetFont(primaryFamily.replace(/\s+/g, "-"))
+}
+
+function parseFontFromDependency(value: string | undefined) {
+  if (!value) {
+    return null
+  }
+
+  const normalized = normalizeCssValue(value)
+  // Preset font imports use variable fontsource packages.
+  const prefix = "@fontsource-variable/"
+  if (!normalized.startsWith(prefix)) {
+    return null
+  }
+
+  return toPresetFont(normalized.slice(prefix.length))
+}
+
+function parseFontFromNextImport(value: string | undefined) {
+  if (!value) {
+    return null
+  }
+
+  return toPresetFont(value.replace(/_/g, "-"))
+}
+
+function toPresetFont(value: string | undefined) {
+  const normalized = normalizeCssValue(value)
+  return PRESET_FONT_SET.has(normalized)
+    ? (normalized as PresetConfig["font"])
+    : null
+}
+
+function getFontVariable(font: PresetConfig["font"]) {
+  if (MONO_FONTS.has(font)) {
+    return "--font-mono"
+  }
+
+  if (SERIF_FONTS.has(font)) {
+    return "--font-serif"
+  }
+
+  return "--font-sans"
+}
+
+function normalizeCssValue(value: string | undefined) {
+  if (!value) {
+    return ""
+  }
+
+  return value
+    .trim()
+    .replace(/\s+/g, " ")
+    .replace(/\s*,\s*/g, ", ")
+    .replace(/"/g, "'")
+    .toLowerCase()
+}
+
+function asPresetBaseColor(value: string | undefined) {
+  return PRESET_BASE_COLOR_SET.has(value ?? "")
+    ? (value as PresetConfig["baseColor"])
+    : null
+}
+
+function asPresetIconLibrary(value: string | undefined) {
+  return PRESET_ICON_LIBRARY_SET.has(value ?? "")
+    ? (value as PresetConfig["iconLibrary"])
+    : null
+}
+
+function asPresetMenuAccent(value: string | undefined) {
+  return PRESET_MENU_ACCENT_SET.has(value ?? "")
+    ? (value as PresetConfig["menuAccent"])
+    : null
+}
+
+function asPresetMenuColor(value: string | undefined) {
+  return PRESET_MENU_COLOR_SET.has(value ?? "")
+    ? (value as PresetConfig["menuColor"])
+    : null
+}