Navy theme from the app icon, frosted glass, and the new mark in-app

The icon's artwork is now the source of truth for the palette:

- frost-* is a navy-tinted neutral scale and accent-* is the icon's
  snowflake blue; light page #f4f7fd / sidebar #e9eff9 / border
  #dce4f1, dark page #0e1424 / sidebar #0a0f1c / surfaces #171f33.
- Surfaces are frosted glass: .card, .glass-panel, .list-group and
  .sidebar-surface are translucent with backdrop-blur/saturate, and the
  page wrapper no longer paints an opaque --page, so the fixed navy/blue
  backdrop reads through the sidebar, cards, chrome and sheets.
- The primary CTA is the icon's blue (#1d61ab in light, #59a8f7 in dark
  with ink text).
- The gate stage, fields and glows are navy/blue; viewport theme-color
  and the manifest background/theme colour are #0e1424.
- The old monochrome snowflake tile is gone from the brand: sidebar,
  header, key gate and empty state now show the real app icon (the
  install sheet already did). Decorative snowflakes stay.
- --surface-strong is finally defined (it was referenced but never
  declared, so those inputs had no fill).
- Icon URLs carry ?v=2 so browser favicon caches refetch.

Updated the contrast audit (21 pairs) and the deck-chrome token
assertions to the new theme. Verified: contrast 21/21, deck chrome
15/15, key gate 49/49, install sheet 64/64, final ux 12/12, retry
14/14, zoom 6/6, security 8/8, pwa 16/16, deck fixes 15/15.

README.md

@@ -112,8 +112,10 @@ no database, no data leaving your machine except the requests you send to Ollama
   list with per-folder counts, Settings/Dark mode pinned to the bottom). It **collapses** to a 68px
   icon rail (remembered in `localStorage`) and becomes a slide-in **drawer** behind a hamburger on
   phones; mobile also keeps the frosted header + iOS tab bar
-- **One neutral palette, both themes**: light page `#ffffff` / sidebar `#f9f9f9` / border `#e5e5e5`;
+- **One navy palette pulled from the app icon, both themes**: light page `#f4f7fd` / sidebar
-  dark page `#212121` / sidebar `#171717` / surfaces `#2f2f2f` / border `rgba(255,255,255,.1)`.
+  `#e9eff9` / border `#dce4f1`; dark page `#0e1424` / sidebar `#0a0f1c` / surfaces `#171f33` /
+  border `rgba(255,255,255,.12)`. Surfaces are frosted glass (translucent + `backdrop-blur`) over
+  the icon's navy backdrop.
   Text tiers are documented AA ratios (see below), and the cards fill the row with
   `repeat(auto-fill, minmax(280px, 1fr))` — no stranded cards, no dead space
 - Deck cards: title → muted metadata → neutral tags (difficulty carries the only colour:
@@ -725,9 +727,10 @@ Things I chose while building, with the reasoning:
     have no `folderId`), deleting a folder re-homes its decks instead of deleting them, and folder
     names travel in exports so an imported deck lands where it came from. 13 browser checks cover
     create → freeze → move → rename → delete → reload → import.
-18. **The visual language is glassmorphism, with restraint.** One accent colour drives the buttons
+18. **The visual language is glassmorphism, with restraint.** The icon's blue is the one accent
-    and highlights; the backdrop is a soft aurora wash; surfaces are frosted and translucent. Colour
+    colour driving buttons and highlights; the backdrop is a navy wash; surfaces — sidebar, cards,
-    appears in activity tints and semantic feedback only — pretty, but still readable and quiet.
+    chrome, sheets — are frosted and translucent. Colour appears in activity tints and semantic
+    feedback only — pretty, but still readable and quiet.
 19. **Custom CSS lives in `@layer components`, and glass uses Tailwind's backdrop utilities.**
     Two build-level traps, both found by looking at real screenshots: unlayered rules beat Tailwind
     utilities (which silently broke `fixed` on the feed), and a hand-written `backdrop-filter` gets
@@ -738,19 +741,19 @@ Things I chose while building, with the reasoning:
     a fixture deck into `localStorage` rather than relying on app code.
 21. **Dark mode is token-driven, and contrast is audited.** Text colours come from
     `--text` / `--text-muted` / `--text-subtle` (never hardcoded), and a `contrast.mjs` audit checks
-    every pairing at WCAG AA — currently **20/20 pairs pass** (e.g. dark secondary `#b4b4b4` on
+    every pairing at WCAG AA — currently **21/21 pairs pass** (e.g. dark secondary `#b7c3dc` on
-    `#212121` = 7.8:1). Difficulty colours were darkened until they cleared 4.5:1 on their pills.
+    `#0e1424` = 10.4:1, white on the light blue CTA `#1d61ab` = 6.3:1). Difficulty colours were
+    darkened until they cleared 4.5:1 on their pills.
     This was a real bug: an earlier edit silently failed, so `.dark` never overrode `--text`, leaving
     near-black text on a dark page.
-22. **The dashboard follows a neutral, ChatGPT-style system.** Near-white/near-black surfaces,
+22. **The dashboard follows the icon's navy system.** Frosted navy/white surfaces, hairline borders,
-    hairline borders, pill CTAs, 18px radii and restrained shadows; the frost survives in the chrome
+    pill CTAs, 18px radii and restrained shadows; the sidebar, cards and chrome are translucent
-    (header, tab bar, sheets) rather than in every card, which keeps text crisp and the layout
+    glass over the backdrop. Deck cards got real hierarchy: title → muted metadata → tags → summary
-    premium. Deck cards got real hierarchy: title → muted metadata → tags → summary → prominent
+    → secondary Study CTA, with secondary actions behind a quiet menu.
-    Study CTA, with secondary actions behind a quiet menu.
+23. **One fixed backdrop layer instead of per-page blobs.** The decorative wash used to be
-23. **One fixed backdrop layer instead of per-page blobs.** The decorative aurora used to be
     rendered inside the content column, so on wide screens it was clipped into a visible hard edge.
-    It now lives in a single `position: fixed` layer (`.app-backdrop`, `z-index: -10`) with very low
+    It now lives in a single `position: fixed` layer (`.app-backdrop`, `z-index: -10`) in the
-    opacities, and `body`'s colour matches its bottom so mobile overscroll shows no seam.
+    icon's navy and blue, and `body`'s colour matches its bottom so mobile overscroll shows no seam.
 24. **The UI was deliberately made quieter.** One accent colour (`accent-*`), a desaturated
     `frost-*` scale, hairline borders and flat surfaces replaced the saturated gradients and the
     seven-colour activity badges. Semantic colours (green/amber/red) survive only where they carry
@@ -784,6 +787,12 @@ Things I chose while building, with the reasoning:
     `user-scalable=no` for an app-like feel, and a mobile-only rule keeps every input and textarea at
     16px so iOS Safari's focus auto-zoom never fires (iOS ignores `user-scalable=no` for that).
     Desktop keeps the designed 12–14px field sizes.
+31. **The app icon drives the palette.** The navy rounded-square artwork in
+    `assets/app-icon-source.jpeg` is the source of truth: `frost-*` is navy-tinted, the accent is
+    the snowflake blue, the backdrop is the same navy wash, the primary CTA is the icon blue (deep
+    in light mode, bright in dark), and every icon/splash/favicon is rendered from it by
+    `scripts/make-icons.mjs`. The sidebar, header, key gate, empty state and install sheet all show
+    the real artwork instead of the old monochrome snowflake tile.
 14. **`gpt-oss:120b` does all content work — but it cannot read images** (`this model does not
     support image input`), so `VISION_MODEL` has to stay a multimodal model (`gemma4:31b-cloud`).
     Text-only inputs — pasted text, PDFs with a text layer, DOCX/PPTX/ODT — never touch the vision

app/create/page.tsx

@@ -11,7 +11,7 @@ export const metadata = {
 export default function CreatePage() {
   return (
     <ApiKeyGate>
-      <div className="flex min-h-dvh bg-[var(--page)]">
+      <div className="flex min-h-dvh">
         <Sidebar />
         <SidebarOffset />
         <MobileSidebar />

app/globals.css

@@ -4,30 +4,30 @@
 @custom-variant dark (&:where(.dark, .dark *));
 
 @theme {
-  /* Neutral scale (a whisper of cool) — the ChatGPT-ish workhorse. ------- */
+  /* Navy-tinted neutral scale — sampled from the app icon. ---------------- */
-  --color-frost-50: #f8f8f9;
+  --color-frost-50: #f5f8fd;
-  --color-frost-100: #f1f1f3;
+  --color-frost-100: #eaf0fa;
-  --color-frost-200: #e4e4e7;
+  --color-frost-200: #d9e3f3;
-  --color-frost-300: #cfcfd4;
+  --color-frost-300: #c2cfe4;
-  --color-frost-400: #a3a3aa;
+  --color-frost-400: #92a3c0;
-  --color-frost-500: #7a7a82;
+  --color-frost-500: #6a7c9b;
-  --color-frost-600: #5d5d64;
+  --color-frost-600: #4e5f7d;
-  --color-frost-700: #47474d;
+  --color-frost-700: #3c4b66;
-  --color-frost-800: #34343a;
+  --color-frost-800: #2b3752;
-  --color-frost-900: #26262a;
+  --color-frost-900: #1d2740;
-  --color-frost-950: #171719;
+  --color-frost-950: #0e1526;
 
-  /* Accent: one confident blue for buttons and highlights. -------------- */
+  /* Accent: the icon's snowflake blue. ------------------------------------ */
-  --color-accent-50: #eef7fd;
+  --color-accent-50: #eff7ff;
-  --color-accent-100: #d9edfa;
+  --color-accent-100: #dbecff;
-  --color-accent-200: #b6dcf4;
+  --color-accent-200: #bcdcff;
-  --color-accent-300: #83c3ea;
+  --color-accent-300: #8fc6ff;
-  --color-accent-400: #4aa4dc;
+  --color-accent-400: #59a8f7;
-  --color-accent-500: #2387c4;
+  --color-accent-500: #3f95ea;
-  --color-accent-600: #186ca6;
+  --color-accent-600: #2478d2;
-  --color-accent-700: #175687;
+  --color-accent-700: #1d61ab;
-  --color-accent-800: #18496f;
+  --color-accent-800: #1c518b;
-  --color-accent-900: #183e5d;
+  --color-accent-900: #1b4473;
 
   /* Aurora hues used only for the frosted backdrop wash. ----------------- */
   --color-aurora-mint: #9fe3d0;
@@ -81,74 +81,76 @@
    --------------------------------------------------------------------------- */
 :root {
   color-scheme: light;
-  --page: #ffffff;
+  --page: #f4f7fd;
-  --sidebar: #f9f9f9;
+  --sidebar: #e9eff9;
   --surface: #ffffff;
   --surface-raised: #ffffff;
-  --card-hover-bg: #fafafa;
+  --surface-strong: #edf2fa;
-  --surface-sunken: rgb(13 13 13 / 0.05);
+  --card-hover-bg: #f7faff;
-  --hairline: #e5e5e5;
+  --surface-sunken: rgb(14 21 40 / 0.05);
-  --card-border: #e2e2e2;
+  --hairline: #dce4f1;
-  --sidebar-divider: #e2e2e2;
+  --card-border: #d7e0ef;
-  --hairline-soft: rgb(13 13 13 / 0.07);
+  --sidebar-divider: #d7e0ef;
-  --glass-tint: rgb(255 255 255 / 0.6);
+  --hairline-soft: rgb(14 21 40 / 0.07);
-  --text: #0d0d0d;          /* 17.6:1 on #ffffff */
+  --glass-tint: rgb(255 255 255 / 0.55);
-  --text-muted: #5d5d5d;    /* 7.4:1  */
+  --text: #0e1526;          /* 16.9:1 on #f4f7fd */
-  --text-subtle: #6b6b6b;   /* 5.4:1  */
+  --text-muted: #4d5c78;    /* 6.3:1  */
-  --hover: rgb(13 13 13 / 0.05);
+  --text-subtle: #5a6a86;   /* 5.1:1  */
-  --sidebar-top: #fbfbfc;
+  --hover: rgb(14 21 40 / 0.05);
-  --sidebar-bottom: #f6f6f7;
+  --sidebar-top: #eef3fb;
-  --sidebar-edge: 0 1px 0 var(--hairline), 6px 0 18px -12px rgb(13 13 13 / 0.38);
+  --sidebar-bottom: #e5edf9;
-  /* API-key gate: near-white stage with soft blank glows, tinted input. */
+  --sidebar-edge: 0 1px 0 var(--sidebar-divider), 6px 0 18px -12px rgb(14 21 40 / 0.35);
-  --gate-base: #f6f6f8;
+  /* API-key gate: cool near-white stage with soft blue glows, tinted input. */
-  --gate-glow-a: rgb(84 102 130 / 0.22);
+  --gate-base: #eef3fb;
-  --gate-glow-b: rgb(124 138 160 / 0.18);
+  --gate-glow-a: rgb(90 150 240 / 0.25);
+  --gate-glow-b: rgb(140 150 240 / 0.2);
   --gate-card: #ffffff;
-  --gate-card-border: #e7e7e9;
+  --gate-card-border: #dde5f2;
-  --gate-callout-bg: #f2f2f5;
+  --gate-callout-bg: #eef3fa;
-  --gate-callout-border: #cfcfd6;
+  --gate-callout-border: #c9d5e8;
-  --field: #f3f3f4;
+  --field: #eef2f9;
-  --field-border: #e2e2e4;
+  --field-border: #dbe3f0;
-  --shadow-gate: 0 28px 70px -36px rgb(13 13 13 / 0.3), 0 1px 2px rgb(13 13 13 / 0.05);
+  --shadow-gate: 0 28px 70px -36px rgb(14 21 40 / 0.3), 0 1px 2px rgb(14 21 40 / 0.05);
   /* Install sheet: light variant (dark is the default, see .dark). */
   --install-sheet: #ffffff;
   --install-card: #f7f7f8;
   --install-chip: #f2f2f2;
   --install-border: #e0e0e0;
-  --shadow-card: 0 1px 2px rgb(13 13 13 / 0.06), 0 1px 3px rgb(13 13 13 / 0.04);
+  --shadow-card: 0 1px 2px rgb(14 21 40 / 0.06), 0 1px 3px rgb(14 21 40 / 0.04);
-  --card-shadow: 0 1px 2px rgb(13 13 13 / 0.05), 0 5px 14px -6px rgb(13 13 13 / 0.12);
+  --card-shadow: 0 1px 2px rgb(14 21 40 / 0.05), 0 5px 14px -6px rgb(14 21 40 / 0.12);
-  --shadow-card-hover: 0 12px 30px -12px rgb(13 13 13 / 0.2), 0 2px 6px rgb(13 13 13 / 0.07);
+  --shadow-card-hover: 0 12px 30px -12px rgb(14 21 40 / 0.2), 0 2px 6px rgb(14 21 40 / 0.07);
 }
 
 .dark {
   color-scheme: dark;
-  --page: #212121;
+  --page: #0e1424;
-  --sidebar: #171717;
+  --sidebar: #0a0f1c;
-  --surface: #2f2f2f;
+  --surface: #171f33;
-  --surface-raised: #383838;
+  --surface-raised: #1e2740;
-  --card-hover-bg: #383838;
+  --surface-strong: #202a42;
-  --surface-sunken: rgb(255 255 255 / 0.08);
+  --card-hover-bg: #1e2740;
-  --hairline: rgb(255 255 255 / 0.14);
+  --surface-sunken: rgb(255 255 255 / 0.07);
-  --card-border: var(--hairline);
+  --hairline: rgb(255 255 255 / 0.12);
-  --sidebar-divider: var(--hairline);
+  --card-border: rgb(255 255 255 / 0.12);
+  --sidebar-divider: rgb(255 255 255 / 0.1);
   --hairline-soft: rgb(255 255 255 / 0.08);
-  --glass-tint: rgb(255 255 255 / 0.08);
+  --glass-tint: rgb(255 255 255 / 0.06);
-  --text: #ececec;          /* 12.9:1 on #212121 */
+  --text: #e9eefb;          /* 15.4:1 on #0e1424 */
-  --text-muted: #b4b4b4;    /* 7.6:1  */
+  --text-muted: #b7c3dc;    /* 10.4:1 */
-  --text-subtle: #a0a0a0;   /* 6.0:1  */
+  --text-subtle: #94a4c2;   /* 7.3:1  */
   --hover: rgb(255 255 255 / 0.07);
-  --sidebar-top: #181818;
+  --sidebar-top: #0b1120;
-  --sidebar-bottom: #141414;
+  --sidebar-bottom: #080d18;
   --sidebar-edge: 0 1px 0 var(--hairline), 6px 0 16px -14px rgb(0 0 0 / 0.75);
-  /* API-key gate: near-black stage, monochrome glows, raised input. */
+  /* API-key gate: navy stage with the icon's blue glows, raised input. */
-  --gate-base: #0f0f0f;
+  --gate-base: #0a0f1c;
-  --gate-glow-a: rgb(255 255 255 / 0.17);
+  --gate-glow-a: rgb(70 140 235 / 0.2);
-  --gate-glow-b: rgb(255 255 255 / 0.12);
+  --gate-glow-b: rgb(120 120 235 / 0.14);
-  --gate-card: #1a1a1a;
+  --gate-card: #131a2c;
-  --gate-card-border: rgb(255 255 255 / 0.08);
+  --gate-card-border: rgb(255 255 255 / 0.1);
-  --gate-callout-bg: rgb(255 255 255 / 0.07);
+  --gate-callout-bg: rgb(255 255 255 / 0.06);
-  --gate-callout-border: rgb(255 255 255 / 0.22);
+  --gate-callout-border: rgb(255 255 255 / 0.2);
-  --field: #242425;
+  --field: #1b2438;
   --field-border: rgb(255 255 255 / 0.1);
   --shadow-gate: 0 30px 80px -40px rgb(0 0 0 / 0.85), 0 1px 2px rgb(0 0 0 / 0.4);
   /* Install sheet: layered dark surfaces (default theme for the sheet). */
@@ -161,22 +163,22 @@
   --shadow-card-hover: 0 10px 28px -16px rgb(0 0 0 / 0.55), 0 1px 2px rgb(0 0 0 / 0.3);
 }
 
-/* Backdrop: a whisper of cool over a neutral base (never a coloured surface). */
+/* Backdrop: the icon's navy base and blue wash, seen through frosted glass. */
 :root {
-  --bd-sky: rgb(150 200 240 / 0.07);
+  --bd-sky: rgb(110 175 245 / 0.2);
-  --bd-lilac: rgb(188 178 236 / 0.05);
+  --bd-lilac: rgb(145 145 240 / 0.14);
-  --bd-mint: rgb(150 220 202 / 0.05);
+  --bd-mint: rgb(110 210 230 / 0.12);
-  --bd-top: #fdfdfd;
+  --bd-top: #f8fafe;
-  --bd-mid: #fafafa;
+  --bd-mid: #f2f6fd;
-  --bd-bottom: #f7f7f7;
+  --bd-bottom: #ecf1fb;
 }
 .dark {
-  --bd-sky: rgb(74 164 220 / 0.05);
+  --bd-sky: rgb(60 130 230 / 0.14);
-  --bd-lilac: rgb(160 140 235 / 0.04);
+  --bd-lilac: rgb(110 115 235 / 0.1);
-  --bd-mint: rgb(88 201 173 / 0.04);
+  --bd-mint: rgb(70 180 215 / 0.08);
-  --bd-top: #232323;
+  --bd-top: #111a2e;
-  --bd-mid: #212121;
+  --bd-mid: #0e1424;
-  --bd-bottom: #1e1e1e;
+  --bd-bottom: #0a101d;
 }
 
 html,
@@ -280,14 +282,14 @@ body {
 }
 .dark .app-backdrop::before,
 .dark .app-backdrop::after {
-  opacity: 0.16;
+  opacity: 0.3;
 }
 
 @layer components {
 /* Glass primitives ------------------------------------------------------ */
 .glass-panel {
-  @apply backdrop-blur-xl;
+  @apply backdrop-blur-xl backdrop-saturate-150;
-  background: var(--surface);
+  background: color-mix(in oklab, var(--surface) 82%, transparent);
   border: 1px solid var(--hairline);
   box-shadow: var(--shadow-card);
 }
@@ -323,7 +325,8 @@ body {
 
 .card {
   border-radius: 1.125rem;               /* 18px */
-  background: var(--surface);
+  @apply backdrop-blur-xl backdrop-saturate-150;
+  background: color-mix(in oklab, var(--surface) 78%, transparent);
   border: 1px solid var(--card-border);
   box-shadow: var(--card-shadow);
 }
@@ -351,7 +354,7 @@ body {
 .list-group {
   border-radius: 1rem;
   @apply backdrop-blur-lg backdrop-saturate-150;
-  background: var(--surface);
+  background: color-mix(in oklab, var(--surface) 82%, transparent);
   border: 1px solid var(--hairline);
   overflow: hidden;
 }
@@ -389,7 +392,7 @@ body {
 }
 .dark .segmented > button[aria-pressed="true"],
 .dark .segmented > button[aria-checked="true"] {
-  background: #383838;
+  background: var(--surface-raised);
   color: #fff;
 }
 
@@ -420,9 +423,14 @@ body {
 .dark .tint-peach { background: linear-gradient(140deg, rgb(230 160 118 / 0.26), rgb(230 160 118 / 0.1)); color: #fadfc9 }
 .dark .tint-rose { background: linear-gradient(140deg, rgb(230 130 150 / 0.26), rgb(230 130 150 / 0.1)); color: #fbd5dd }
 
-/* Sidebar surface: a touch darker than the page, with a real edge. */
+/* Sidebar surface: frosted navy glass with a real edge. */
 .sidebar-surface {
-  background: linear-gradient(180deg, var(--sidebar-top), var(--sidebar-bottom));
+  @apply backdrop-blur-xl backdrop-saturate-150;
+  background: linear-gradient(
+    180deg,
+    color-mix(in oklab, var(--sidebar-top) 84%, transparent),
+    color-mix(in oklab, var(--sidebar-bottom) 84%, transparent)
+  );
   border-right: 1px solid var(--sidebar-divider);
   box-shadow: var(--sidebar-edge);
 }
@@ -450,27 +458,27 @@ body {
   color: var(--text);
 }
 
-/* Shared CTA language: near-black pill in light mode, white pill in dark. */
+/* Shared CTA language: the icon's blue, with a deeper fill in light mode. */
 .btn-primary {
   display: inline-flex;
   align-items: center;
   justify-content: center;
   gap: 0.5rem;
   border-radius: 999px;
-  background: #0d0d0d;
+  background: #1d61ab;
   color: #ffffff;
   font-weight: 500;
-  box-shadow: 0 1px 2px rgb(13 13 13 / 0.18);
+  box-shadow: 0 1px 2px rgb(14 21 40 / 0.22);
   transition: background-color 160ms ease, transform 160ms ease, box-shadow 160ms ease;
 }
-.btn-primary:hover { background: #2f2f2f; }
+.btn-primary:hover { background: #2478d2; }
 .btn-primary:active { transform: scale(0.985); }
 .dark .btn-primary {
-  background: #ffffff;
+  background: #59a8f7;
-  color: #0d0d0d;
+  color: #081020;
   box-shadow: none;
 }
-.dark .btn-primary:hover { background: #e5e5e5; }
+.dark .btn-primary:hover { background: #7bbaff; }
 
 .btn-secondary {
   display: inline-flex;

app/layout.tsx

@@ -20,14 +20,15 @@ export const metadata: Metadata = {
   },
   icons: {
     icon: [
-      { url: "/icons/favicon-32.png", sizes: "32x32", type: "image/png" },
+      // ?v=2 busts browser favicon caches after the icon redesign.
-      { url: "/icons/icon-192.png", sizes: "192x192", type: "image/png" },
+      { url: "/icons/favicon-32.png?v=2", sizes: "32x32", type: "image/png" },
-      { url: "/icons/icon-512.png", sizes: "512x512", type: "image/png" },
+      { url: "/icons/icon-192.png?v=2", sizes: "192x192", type: "image/png" },
+      { url: "/icons/icon-512.png?v=2", sizes: "512x512", type: "image/png" },
     ],
     apple: [
-      { url: "/icons/apple-touch-icon.png", sizes: "180x180" },
+      { url: "/icons/apple-touch-icon.png?v=2", sizes: "180x180" },
-      { url: "/icons/apple-touch-icon-167.png", sizes: "167x167" },
+      { url: "/icons/apple-touch-icon-167.png?v=2", sizes: "167x167" },
-      { url: "/icons/apple-touch-icon-152.png", sizes: "152x152" },
+      { url: "/icons/apple-touch-icon-152.png?v=2", sizes: "152x152" },
     ],
   },
   other: {
@@ -48,8 +49,8 @@ export const viewport: Viewport = {
   userScalable: false,
   viewportFit: "cover",
   themeColor: [
-    { media: "(prefers-color-scheme: light)", color: "#f8fafc" },
+    { media: "(prefers-color-scheme: light)", color: "#f4f7fd" },
-    { media: "(prefers-color-scheme: dark)", color: "#0a0f13" },
+    { media: "(prefers-color-scheme: dark)", color: "#0e1424" },
   ],
 };
 

app/manifest.ts

@@ -14,8 +14,8 @@ export default function manifest(): MetadataRoute.Manifest {
     scope: "/",
     display: "standalone",
     orientation: "portrait",
-    background_color: "#f8fafc",
+    background_color: "#0e1424",
-    theme_color: "#f8fafc",
+    theme_color: "#0e1424",
     categories: ["education", "productivity"],
     icons: [
       { src: "/icons/icon-192.png", sizes: "192x192", type: "image/png", purpose: "any" },

app/page.tsx

@@ -7,7 +7,7 @@ import { TabBar } from "@/components/TabBar";
 export default function HomePage() {
   return (
     <ApiKeyGate>
-      <div className="flex min-h-dvh bg-[var(--page)]">
+      <div className="flex min-h-dvh">
         <Sidebar />
         <SidebarOffset />
         <MobileSidebar />

components/ApiKeyGate.tsx

@@ -11,7 +11,6 @@ import {
   EyeOffIcon,
   MoonIcon,
   QuestionIcon,
-  SnowflakeIcon,
   SunIcon,
   XIcon,
 } from "@/components/icons";
@@ -233,12 +232,13 @@ function GateScreen() {
           transition={{ duration: 0.45, ease: [0.22, 1, 0.36, 1] }}
           className="my-auto w-full max-w-[420px] rounded-[24px] border border-[var(--gate-card-border)] bg-[var(--gate-card)] p-6 px-7 text-center shadow-[var(--shadow-gate)] sm:p-8"
         >
-          <span
+          {/* eslint-disable-next-line @next/next/no-img-element -- static app icon, no optimisation needed */}
+          <img
+            src="/icons/icon-192.png"
+            alt=""
             aria-hidden
-            className="mx-auto grid size-14 place-items-center rounded-[16px] bg-[var(--text)] text-[var(--page)] dark:border dark:border-[var(--field-border)] dark:bg-[var(--field)] dark:text-[var(--text)]"
+            className="mx-auto size-14 rounded-[16px] shadow-[var(--shadow-card)]"
-          >
+          />
-            <SnowflakeIcon className="size-7" />
-          </span>
 
           <h1 className="mt-6 text-[24px] font-medium leading-tight tracking-[-0.01em] text-[var(--text)] sm:text-[28px]">
             Connect your Ollama key

components/AppHeader.tsx

@@ -3,7 +3,7 @@
 import Link from "next/link";
 import { useEffect, useState } from "react";
 
-import { GearIcon, MenuIcon, SnowflakeIcon } from "@/components/icons";
+import { GearIcon, MenuIcon } from "@/components/icons";
 import { SettingsDialog } from "@/components/SettingsDialog";
 import { ThemeToggle } from "@/components/ThemeToggle";
 import { sidebarOpen } from "@/lib/nav";
@@ -47,12 +47,13 @@ export function AppHeader({ className, compact = false }: { className?: string;
             <MenuIcon className="size-5" />
           </button>
           <Link href="/" className="group flex items-center gap-2.5 rounded-xl px-1 py-1" aria-label="Freezmo home">
-            <span
+          {/* eslint-disable-next-line @next/next/no-img-element -- static app icon, no optimisation needed */}
+          <img
+            src="/icons/icon-192.png"
+            alt=""
             aria-hidden
-              className="grid size-8 place-items-center rounded-[0.6rem] bg-[var(--text)] text-[var(--page)] transition-transform group-hover:scale-[1.04]"
+            className="size-8 rounded-[0.6rem] transition-transform group-hover:scale-[1.04]"
-            >
+          />
-              <SnowflakeIcon className="size-[18px]" />
-            </span>
             <span className="flex items-baseline gap-2">
               <span className="text-[15px] font-semibold tracking-[-0.01em] text-[var(--text)]">
                 Freezmo

components/Sidebar.tsx

@@ -12,7 +12,6 @@ import {
   LayersIcon,
   MoonIcon,
   PlusIcon,
-  SnowflakeIcon,
   SunIcon,
 } from "@/components/icons";
 import { useTheme } from "@/components/ThemeToggle";
@@ -110,12 +109,13 @@ function NavContent({
           aria-label="Freezmo home"
           title="Freezmo"
         >
-          <span
+          {/* eslint-disable-next-line @next/next/no-img-element -- static app icon, no optimisation needed */}
+          <img
+            src="/icons/icon-192.png"
+            alt=""
             aria-hidden
-            className="grid size-7 shrink-0 place-items-center rounded-lg bg-[var(--text)] text-[var(--page)]"
+            className="size-7 shrink-0 rounded-lg shadow-[0_1px_3px_rgb(14_21_40/0.35)]"
-          >
+          />
-            <SnowflakeIcon className="size-4" />
-          </span>
           {!collapsed ? (
             <span className="text-[15px] font-semibold tracking-[-0.01em] text-[var(--text)]">Freezmo</span>
           ) : null}

components/ui.tsx

@@ -2,7 +2,6 @@
 
 import { forwardRef } from "react";
 
-import { SnowflakeIcon } from "@/components/icons";
 import { cn } from "@/lib/utils";
 
 type ButtonVariant = "primary" | "secondary" | "ghost" | "danger" | "success";
@@ -135,12 +134,17 @@ export function EmptyState({
 }) {
   return (
     <div className="animate-rise flex flex-col items-center px-6 py-6 text-center sm:py-24">
+      {icon ? (
         <span
           className="mb-4 grid size-12 place-items-center rounded-2xl border border-[var(--hairline)] bg-[var(--surface-strong)] text-[var(--text-subtle)]"
           aria-hidden
         >
-        {icon ?? <SnowflakeIcon className="size-6" />}
+          {icon}
         </span>
+      ) : (
+        /* eslint-disable-next-line @next/next/no-img-element -- static app icon, no optimisation needed */
+        <img src="/icons/icon-192.png" alt="" aria-hidden className="mb-4 size-12 rounded-2xl" />
+      )}
       <h2 className="text-[17px] font-semibold tracking-[-0.01em] text-[var(--text)]">{title}</h2>
       {children ? (
         <p className="mt-2 max-w-md text-sm leading-relaxed text-[var(--text-muted)]">{children}</p>