diff --git a/apps/desktop/src/themes/context.test.tsx b/apps/desktop/src/themes/context.test.tsx
index 2bc2011833..144eca0f6d 100644
--- a/apps/desktop/src/themes/context.test.tsx
+++ b/apps/desktop/src/themes/context.test.tsx
@@ -3,7 +3,7 @@ import { afterEach, beforeEach, describe, expect, it } from 'vitest'
 
 import { __resetBackendSkinSync, ingestBackendSkin } from './backend-sync'
 import { skinPref, ThemeProvider, useTheme } from './context'
-import { midnightTheme } from './presets'
+import { everforestTheme } from './presets'
 
 // The live-authoring loop: Hermes writes/edits one skin file and every surface
 // repaints. An in-place edit keeps the NAME — only the palette moves.
@@ -99,9 +99,9 @@ describe('ThemeProvider highlight preview', () => {
 
     const committed = ctx.themeName
 
-    act(() => ctx.previewTheme('midnight', 'dark'))
+    act(() => ctx.previewTheme('everforest', 'dark'))
 
-    expect(cssVar('--theme-foreground')).toBe(midnightTheme.colors.foreground)
+    expect(cssVar('--theme-foreground')).toBe(everforestTheme.darkColors!.foreground)
     // The commit surface does not change. The context name and the stored
     // preference keep their values.
     expect(ctx.themeName).toBe(committed)
@@ -111,22 +111,22 @@ describe('ThemeProvider highlight preview', () => {
   it('clearThemePreview repaints the committed appearance', () => {
     renderProbe()
 
-    act(() => ctx.previewTheme('midnight', 'dark'))
-    expect(cssVar('--theme-foreground')).toBe(midnightTheme.colors.foreground)
+    act(() => ctx.previewTheme('everforest', 'dark'))
+    expect(cssVar('--theme-foreground')).toBe(everforestTheme.darkColors!.foreground)
 
     act(() => ctx.clearThemePreview())
-    expect(cssVar('--theme-foreground')).not.toBe(midnightTheme.colors.foreground)
+    expect(cssVar('--theme-foreground')).not.toBe(everforestTheme.darkColors!.foreground)
   })
 
   it('a commit replaces the preview and persists', () => {
     renderProbe()
 
-    act(() => ctx.previewTheme('midnight', 'dark'))
+    act(() => ctx.previewTheme('everforest', 'dark'))
     act(() => ctx.setTheme('mono'))
 
     expect(ctx.themeName).toBe('mono')
     expect(skinPref.resolve('default')).toBe('mono')
-    expect(cssVar('--theme-foreground')).not.toBe(midnightTheme.colors.foreground)
+    expect(cssVar('--theme-foreground')).not.toBe(everforestTheme.darkColors!.foreground)
   })
 
   it('ignores a preview of an unknown theme', () => {
diff --git a/apps/desktop/src/themes/context.tsx b/apps/desktop/src/themes/context.tsx
index 2a575f8d48..831a17d9dd 100644
--- a/apps/desktop/src/themes/context.tsx
+++ b/apps/desktop/src/themes/context.tsx
@@ -16,10 +16,13 @@ import { $registryVersion } from '@/contrib/registry'
 import { matchesQuery, useMediaQuery } from '@/hooks/use-media-query'
 import { persistString, persistStringRecord, storedString, storedStringRecord } from '@/lib/storage'
 import { $activeGatewayProfile, normalizeProfileKey } from '@/store/profile'
+import { setAppearance } from '@/store/translucency'
 
 import { $backendThemes, $pendingSkinApply } from './backend-sync'
-import { hexToRgb, mix, readableOn } from './color'
+import { $accentOverride } from './accent-override'
+import { harmonize, hexToRgb, mix, readableOn } from './color'
 import { BUILTIN_THEME_LIST, DEFAULT_SKIN_NAME, DEFAULT_TYPOGRAPHY, nousTheme } from './presets'
+import { retintTheme } from './retint'
 import type { DesktopTheme, DesktopThemeColors } from './types'
 import { $userThemes, listAllThemes, resolveTheme } from './user-themes'
 
@@ -35,7 +38,9 @@ const PROFILE_MODES_KEY = 'hermes-desktop-profile-modes-v1'
 // Last active profile, recorded so the boot-time paint can pick that profile's
 // theme before the gateway reports which profile actually launched.
 const LAST_PROFILE_KEY = 'hermes-desktop-active-profile-v1'
-const RETIRED_SKINS = new Set(['nous-light', 'default', 'gold'])
+// Skins that no longer exist. A profile still pointing at one falls back to
+// DEFAULT_SKIN_NAME rather than painting a name nothing resolves.
+const RETIRED_SKINS = new Set(['nous-light', 'default', 'gold', 'midnight'])
 
 export type ThemeMode = 'light' | 'dark' | 'system'
 
@@ -194,6 +199,12 @@ function applyTheme(theme: DesktopTheme, mode: 'light' | 'dark') {
   root.dataset.hermesMode = rendered
   root.classList.toggle('dark', isDark)
 
+  // Translucency is tuned per appearance, and "appearance" means the palette
+  // actually painted — a skin that keeps a bright surface in "dark" wants
+  // light's tint. Publishing from here covers the boot paint too, so the very
+  // first resolved state main is told about is already the right one.
+  setAppearance(rendered)
+
   // Brand seeds feed every glass + shadcn token via `color-mix()` in styles.css.
   const seeds: Record<string, string> = {
     '--theme-foreground': c.foreground,
@@ -224,6 +235,11 @@ function applyTheme(theme: DesktopTheme, mode: 'light' | 'dark') {
     '--dt-destructive-foreground': c.destructiveForeground,
     '--dt-sidebar-border': c.sidebarBorder ?? c.border,
     '--dt-user-bubble-border': c.userBubbleBorder ?? c.border,
+    // Semantic success, bent toward the accent so it settles into the palette
+    // instead of clashing with it. A green accent barely moves it (see
+    // `harmonize`); a blue one turns the sidebar's finished dots teal rather
+    // than leaving eight emerald spots fighting the theme.
+    '--ui-success': harmonize('#10b981', midground, 0.25),
     '--dt-font-sans': typo.fontSans,
     '--dt-font-mono': typo.fontMono,
     '--noise-opacity-mul': isDark ? 'calc(0.04 / 0.21)' : 'calc(0.34 / 0.21)'
@@ -404,10 +420,20 @@ export function ThemeProvider({ children }: { children: ReactNode }) {
     [paintedName, paintedMode, userThemes, backendThemes, registryVersion]
   )
 
-  // What actually gets painted (matches the `.dark` class applyTheme toggles).
-  const renderedMode = useMemo(() => renderedModeFor(activeTheme.colors, paintedMode), [activeTheme, paintedMode])
+  // Dev-only accent retint. `null` (always, in production) returns the theme
+  // untouched, and retintTheme is an identity when the seed already matches —
+  // so the picker costs nothing until it's actually moved off the default.
+  const accentOverride = useStore($accentOverride)
 
-  useEffect(() => applyTheme(activeTheme, paintedMode), [activeTheme, paintedMode])
+  const paintedTheme = useMemo(
+    () => (accentOverride === null ? activeTheme : retintTheme(activeTheme, accentOverride)),
+    [activeTheme, accentOverride]
+  )
+
+  // What actually gets painted (matches the `.dark` class applyTheme toggles).
+  const renderedMode = useMemo(() => renderedModeFor(paintedTheme.colors, paintedMode), [paintedTheme, paintedMode])
+
+  useEffect(() => applyTheme(paintedTheme, paintedMode), [paintedTheme, paintedMode])
 
   // Keep the native window appearance pinned to the app theme (vibrancy
   // material, titlebar, new-window pre-paint background).
@@ -453,7 +479,7 @@ export function ThemeProvider({ children }: { children: ReactNode }) {
 
   const value = useMemo<ThemeContextValue>(
     () => ({
-      theme: activeTheme,
+      theme: paintedTheme,
       themeName,
       mode,
       resolvedMode,
@@ -465,7 +491,7 @@ export function ThemeProvider({ children }: { children: ReactNode }) {
       clearThemePreview
     }),
     [
-      activeTheme,
+      paintedTheme,
       themeName,
       mode,
       resolvedMode,
diff --git a/apps/desktop/src/themes/presets.ts b/apps/desktop/src/themes/presets.ts
index 464381819f..6b46d5a596 100644
--- a/apps/desktop/src/themes/presets.ts
+++ b/apps/desktop/src/themes/presets.ts
@@ -1,6 +1,20 @@
 /**
  * Built-in desktop themes. Names match the CLI skins / dashboard presets.
  * Add new themes here — no code changes needed elsewhere.
+ *
+ * The palette-bearing skins (nous, catppuccin, everforest, solarized) are forks
+ * of their VS Code originals, converted by `buildThemeFromMarketplace` (see
+ * ./install.ts) from the extensions below — the same path a Marketplace import
+ * takes, so each is identical to installing the extension by hand and costs the
+ * user neither the download nor the install step.
+ *
+ *   nous       ← github.github-vscode-theme   (Light Default / Dark Default)
+ *   catppuccin ← Catppuccin.catppuccin-vsc    (Latte / Mocha)
+ *   everforest ← sainnhe.everforest
+ *   solarized  ← ryanolsonx.solarized
+ *
+ * Re-convert from the upstream extension rather than hand-editing hexes; hand
+ * edits drift from upstream silently and can't be re-derived.
  */
 
 import type { DesktopTheme, DesktopThemeTypography } from './types'
@@ -19,117 +33,556 @@ const SYSTEM_MONO = 'Menlo, Monaco, "SF Mono", "Courier Prime", monospace, ' + E
 
 export const DEFAULT_TYPOGRAPHY: DesktopThemeTypography = { fontSans: SYSTEM_SANS, fontMono: SYSTEM_MONO }
 
-const NOUS_BLUE = '#0053FD'
-const PSYCHE_BLUE = '#1540B1'
-const PSYCHE_WARM = '#FFE6CB'
-
-const nousTint = (pct: number) => `color-mix(in srgb, ${NOUS_BLUE} ${pct}%, #FFFFFF)`
-const nousTintTransparent = (pct: number) => `color-mix(in srgb, ${NOUS_BLUE} ${pct}%, transparent)`
-
 /**
- * Nous — canonical Hermes desktop identity. The palette keeps the current
- * glass geometry neutral, then lets the old bb/gui blue and psyche cream
- * return as accent seeds.
+ * Nous — the canonical Hermes desktop identity, forked from the GitHub VS Code
+ * theme (github.github-vscode-theme). Light is GitHub Light Default, dark is
+ * GitHub Dark Default, both converted through the same path a Marketplace
+ * install takes, so the palette here is byte-identical to importing the
+ * extension yourself.
+ *
+ * Typography stays Hermes's own: a VS Code theme carries no font opinion, and
+ * these are the stacks every skin has been rendering with.
  */
-export const nousTheme: DesktopTheme = {
-  name: 'nous',
-  label: 'Nous',
-  description: 'Glass neutrals with Nous blue accents',
+/**
+ * GitHub — the upstream palette, unmodified.
+ *
+ * `nous` is a fork of this with its own accent, so shipping both keeps the
+ * original available on its own terms instead of only existing as the thing
+ * nous diverged from. Everything but the accent family is identical between
+ * them; separate presets are what let nous's accent move without silently
+ * redefining what "GitHub" means.
+ */
+export const githubTheme: DesktopTheme = {
+  name: 'github',
+  label: 'GitHub',
+  description: 'GitHub Light Default and Dark Default',
   colors: {
-    background: '#F8FAFF',
-    foreground: '#17171A',
-    card: '#FFFFFF',
-    cardForeground: '#17171A',
-    muted: nousTint(5),
-    mutedForeground: '#666678',
-    popover: '#FFFFFF',
-    popoverForeground: '#17171A',
-    primary: NOUS_BLUE,
-    primaryForeground: '#FCFCFC',
-    secondary: nousTint(7),
-    secondaryForeground: '#242432',
-    accent: nousTint(10),
-    accentForeground: '#202030',
-    border: nousTintTransparent(22),
-    input: nousTintTransparent(30),
-    ring: NOUS_BLUE,
-    midground: NOUS_BLUE,
-    composerRing: NOUS_BLUE,
-    destructive: '#C72E4D',
-    destructiveForeground: '#FFFFFF',
-    sidebarBackground: '#F3F7FF',
-    sidebarBorder: nousTintTransparent(18),
-    userBubble: nousTint(6),
-    userBubbleBorder: nousTintTransparent(24)
+    background: '#ffffff',
+    foreground: '#1f2328',
+    card: '#f6f8fa',
+    cardForeground: '#1f2328',
+    muted: '#f6f6f6',
+    mutedForeground: '#656d76',
+    popover: '#ffffff',
+    popoverForeground: '#1f2328',
+    primary: '#196d31',
+    primaryForeground: '#ffffff',
+    secondary: '#dfebe2',
+    secondaryForeground: '#1f2328',
+    accent: '#e3ede6',
+    accentForeground: '#1f2328',
+    border: '#d0d7de',
+    input: '#ffffff',
+    ring: '#196d31',
+    midground: '#196d31',
+    midgroundForeground: '#ffffff',
+    composerRing: '#196d31',
+    destructive: '#cf222e',
+    destructiveForeground: '#ffffff',
+    sidebarBackground: '#f6f8fa',
+    sidebarBorder: '#d0d7de',
+    userBubble: '#dbe7e2',
+    userBubbleBorder: '#d0d7de'
   },
   darkColors: {
-    background: '#0D2F86',
-    foreground: PSYCHE_WARM,
-    card: '#12378F',
-    cardForeground: PSYCHE_WARM,
-    muted: '#183F9A',
-    mutedForeground: '#B5C7F3',
-    popover: '#123A96',
-    popoverForeground: PSYCHE_WARM,
-    primary: PSYCHE_WARM,
-    primaryForeground: '#0D2F86',
-    secondary: '#1B45A4',
-    secondaryForeground: '#E0E8FF',
-    accent: PSYCHE_BLUE,
-    accentForeground: '#F0F4FF',
-    border: '#3158AD',
-    input: '#0B2566',
-    ring: PSYCHE_WARM,
-    midground: NOUS_BLUE,
-    composerRing: PSYCHE_WARM,
-    destructive: '#C0473A',
-    destructiveForeground: '#FEF2F2',
-    sidebarBackground: '#09286F',
-    sidebarBorder: '#234A9C',
-    userBubble: '#143B91',
-    userBubbleBorder: '#3A63BD'
+    background: '#0d1117',
+    foreground: '#e6edf3',
+    card: '#010409',
+    cardForeground: '#e6edf3',
+    muted: '#1a1e24',
+    mutedForeground: '#7d8590',
+    popover: '#161b22',
+    popoverForeground: '#e6edf3',
+    primary: '#4f9e5e',
+    primaryForeground: '#ffffff',
+    secondary: '#1f382b',
+    secondaryForeground: '#e6edf3',
+    accent: '#192a24',
+    accentForeground: '#e6edf3',
+    border: '#30363d',
+    input: '#0d1117',
+    ring: '#4f9e5e',
+    midground: '#4f9e5e',
+    midgroundForeground: '#ffffff',
+    composerRing: '#4f9e5e',
+    destructive: '#f85149',
+    destructiveForeground: '#ffffff',
+    sidebarBackground: '#010409',
+    sidebarBorder: '#30363d',
+    userBubble: '#0f2018',
+    userBubbleBorder: '#30363d'
   },
   typography: {
     fontSans: SYSTEM_SANS,
     fontMono: SYSTEM_MONO,
     fontUrl: 'https://fonts.googleapis.com/css2?family=Courier+Prime:wght@400;700&display=swap'
+  },
+  terminal: {
+    foreground: '#1f2328',
+    black: '#24292f',
+    red: '#cf222e',
+    green: '#116329',
+    yellow: '#4d2d00',
+    blue: '#0969da',
+    magenta: '#8250df',
+    cyan: '#1b7c83',
+    white: '#6e7781',
+    brightBlack: '#57606a',
+    brightRed: '#a40e26',
+    brightGreen: '#1a7f37',
+    brightYellow: '#633c01',
+    brightBlue: '#218bff',
+    brightMagenta: '#a475f9',
+    brightCyan: '#3192aa',
+    brightWhite: '#8c959f'
+  },
+  darkTerminal: {
+    foreground: '#e6edf3',
+    black: '#484f58',
+    red: '#ff7b72',
+    green: '#3fb950',
+    yellow: '#d29922',
+    blue: '#58a6ff',
+    magenta: '#bc8cff',
+    cyan: '#39c5cf',
+    white: '#b1bac4',
+    brightBlack: '#6e7681',
+    brightRed: '#ffa198',
+    brightGreen: '#56d364',
+    brightYellow: '#e3b341',
+    brightBlue: '#79c0ff',
+    brightMagenta: '#d2a8ff',
+    brightCyan: '#56d4dd',
+    brightWhite: '#ffffff'
   }
 }
 
-/** Deep blue-violet with cool accents. Matches the dashboard midnight theme. */
-export const midnightTheme: DesktopTheme = {
-  name: 'midnight',
-  label: 'Midnight',
-  description: 'Deep blue-violet with cool accents',
+/** Catppuccin — Latte in light, Mocha in dark (Catppuccin.catppuccin-vsc). */
+
+/**
+ * Nous — the canonical Hermes desktop identity: GitHub's chrome carrying Nous
+ * blue. Forked from github.github-vscode-theme (Light Default / Dark Default),
+ * with only the accent family re-seeded; every neutral is upstream's.
+ *
+ * Two seeds, one blue. `#0053FD` is the brand color and reads at 5.4:1 on the
+ * light sidebar, but only 3.6:1 on the near-black dark one — so dark carries
+ * `#4a84fe`, the same hue (263°) lifted to clear AA at 5.9:1. The soft
+ * surfaces below are mixed from those seeds in OKLab, which is what keeps a
+ * saturated blue from drifting violet on its way to white.
+ */
+export const nousTheme: DesktopTheme = {
+  name: 'nous',
+  label: 'Nous',
+  description: 'GitHub chrome, Nous blue accent',
   colors: {
-    background: '#08081c',
-    foreground: '#ddd6ff',
-    card: '#0d0d28',
-    cardForeground: '#ddd6ff',
-    muted: '#13133a',
-    mutedForeground: '#7c7ab0',
-    popover: '#0f0f2e',
-    popoverForeground: '#ddd6ff',
-    primary: '#ddd6ff',
-    primaryForeground: '#08081c',
-    secondary: '#1a1a4a',
-    secondaryForeground: '#c4bff0',
-    accent: '#1a1a44',
-    accentForeground: '#d0c8ff',
-    border: '#1e1e52',
-    input: '#1e1e52',
-    ring: '#8b80e8',
-    midground: '#8b80e8',
-    destructive: '#b03060',
-    destructiveForeground: '#fef2f2',
-    sidebarBackground: '#06061a',
-    sidebarBorder: '#12123a',
-    userBubble: '#14143a',
-    userBubbleBorder: '#242466'
+    background: '#ffffff',
+    foreground: '#1f2328',
+    card: '#f6f8fa',
+    cardForeground: '#1f2328',
+    muted: '#f6f6f6',
+    mutedForeground: '#656d76',
+    popover: '#ffffff',
+    popoverForeground: '#1f2328',
+    primary: '#0053fd',
+    primaryForeground: '#ffffff',
+    secondary: '#deeaff',
+    secondaryForeground: '#1f2328',
+    accent: '#e3edff',
+    accentForeground: '#1f2328',
+    border: '#d0d7de',
+    input: '#ffffff',
+    ring: '#0053fd',
+    midground: '#0053fd',
+    midgroundForeground: '#ffffff',
+    composerRing: '#0053fd',
+    destructive: '#cf222e',
+    destructiveForeground: '#ffffff',
+    sidebarBackground: '#f6f8fa',
+    sidebarBorder: '#d0d7de',
+    userBubble: '#dae7fd',
+    userBubbleBorder: '#d0d7de'
+  },
+  darkColors: {
+    background: '#0d1117',
+    foreground: '#e6edf3',
+    card: '#010409',
+    cardForeground: '#e6edf3',
+    muted: '#1a1e24',
+    mutedForeground: '#7d8590',
+    popover: '#161b22',
+    popoverForeground: '#e6edf3',
+    primary: '#4a84fe',
+    primaryForeground: '#161616',
+    secondary: '#1d2e4f',
+    secondaryForeground: '#e6edf3',
+    accent: '#17243a',
+    accentForeground: '#e6edf3',
+    border: '#30363d',
+    input: '#0d1117',
+    ring: '#4a84fe',
+    midground: '#4a84fe',
+    midgroundForeground: '#161616',
+    composerRing: '#4a84fe',
+    destructive: '#f85149',
+    destructiveForeground: '#ffffff',
+    sidebarBackground: '#010409',
+    sidebarBorder: '#30363d',
+    userBubble: '#07162c',
+    userBubbleBorder: '#30363d'
   },
   typography: {
-    fontMono: `"JetBrains Mono", ${SYSTEM_MONO}`,
-    fontUrl: 'https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500;700&display=swap'
+    fontSans: SYSTEM_SANS,
+    fontMono: SYSTEM_MONO,
+    fontUrl: 'https://fonts.googleapis.com/css2?family=Courier+Prime:wght@400;700&display=swap'
+  },
+  terminal: {
+    foreground: '#1f2328',
+    black: '#24292f',
+    red: '#cf222e',
+    green: '#116329',
+    yellow: '#4d2d00',
+    blue: '#0969da',
+    magenta: '#8250df',
+    cyan: '#1b7c83',
+    white: '#6e7781',
+    brightBlack: '#57606a',
+    brightRed: '#a40e26',
+    brightGreen: '#1a7f37',
+    brightYellow: '#633c01',
+    brightBlue: '#218bff',
+    brightMagenta: '#a475f9',
+    brightCyan: '#3192aa',
+    brightWhite: '#8c959f'
+  },
+  darkTerminal: {
+    foreground: '#e6edf3',
+    black: '#484f58',
+    red: '#ff7b72',
+    green: '#3fb950',
+    yellow: '#d29922',
+    blue: '#58a6ff',
+    magenta: '#bc8cff',
+    cyan: '#39c5cf',
+    white: '#b1bac4',
+    brightBlack: '#6e7681',
+    brightRed: '#ffa198',
+    brightGreen: '#56d364',
+    brightYellow: '#e3b341',
+    brightBlue: '#79c0ff',
+    brightMagenta: '#d2a8ff',
+    brightCyan: '#56d4dd',
+    brightWhite: '#ffffff'
+  }
+}
+
+/** Catppuccin — Latte in light, Mocha in dark (Catppuccin.catppuccin-vsc). */
+export const catppuccinTheme: DesktopTheme = {
+  name: 'catppuccin',
+  label: 'Catppuccin',
+  description: 'Soothing pastels — Latte and Mocha',
+  colors: {
+    background: '#eff1f5',
+    foreground: '#4c4f69',
+    card: '#e6e9ef',
+    cardForeground: '#4c4f69',
+    muted: '#e8ebef',
+    mutedForeground: '#4c4f69',
+    popover: '#e6e9ef',
+    popoverForeground: '#4c4f69',
+    primary: '#6d2ebf',
+    primaryForeground: '#ffffff',
+    secondary: '#ddd6ed',
+    secondaryForeground: '#4c4f69',
+    accent: '#dfdaef',
+    accentForeground: '#4c4f69',
+    border: '#acb0be',
+    input: '#ccd0da',
+    ring: '#6d2ebf',
+    midground: '#6d2ebf',
+    midgroundForeground: '#ffffff',
+    composerRing: '#6d2ebf',
+    destructive: '#d20f39',
+    destructiveForeground: '#ffffff',
+    sidebarBackground: '#e6e9ef',
+    sidebarBorder: '#acb0be',
+    userBubble: '#d7d3e9',
+    userBubbleBorder: '#acb0be'
+  },
+  darkColors: {
+    background: '#1e1e2e',
+    foreground: '#cdd6f4',
+    card: '#181825',
+    cardForeground: '#cdd6f4',
+    muted: '#29293a',
+    mutedForeground: '#cdd6f4',
+    popover: '#181825',
+    popoverForeground: '#cdd6f4',
+    primary: '#cba6f7',
+    primaryForeground: '#ffffff',
+    secondary: '#4e4466',
+    secondaryForeground: '#cdd6f4',
+    accent: '#3d3652',
+    accentForeground: '#cdd6f4',
+    border: '#585b70',
+    input: '#313244',
+    ring: '#cba6f7',
+    midground: '#cba6f7',
+    midgroundForeground: '#ffffff',
+    composerRing: '#cba6f7',
+    destructive: '#f38ba8',
+    destructiveForeground: '#ffffff',
+    sidebarBackground: '#181825',
+    sidebarBorder: '#585b70',
+    userBubble: '#38324b',
+    userBubbleBorder: '#585b70'
+  },
+  terminal: {
+    foreground: '#4c4f69',
+    cursor: '#dc8a78',
+    selectionBackground: '#acb0be',
+    black: '#5c5f77',
+    red: '#d20f39',
+    green: '#40a02b',
+    yellow: '#df8e1d',
+    blue: '#1e66f5',
+    magenta: '#ea76cb',
+    cyan: '#179299',
+    white: '#acb0be',
+    brightBlack: '#6c6f85',
+    brightRed: '#de293e',
+    brightGreen: '#49af3d',
+    brightYellow: '#eea02d',
+    brightBlue: '#456eff',
+    brightMagenta: '#fe85d8',
+    brightCyan: '#2d9fa8',
+    brightWhite: '#bcc0cc'
+  },
+  darkTerminal: {
+    foreground: '#cdd6f4',
+    cursor: '#f5e0dc',
+    selectionBackground: '#585b70',
+    black: '#45475a',
+    red: '#f38ba8',
+    green: '#a6e3a1',
+    yellow: '#f9e2af',
+    blue: '#89b4fa',
+    magenta: '#f5c2e7',
+    cyan: '#94e2d5',
+    white: '#a6adc8',
+    brightBlack: '#585b70',
+    brightRed: '#f37799',
+    brightGreen: '#89d88b',
+    brightYellow: '#ebd391',
+    brightBlue: '#74a8fc',
+    brightMagenta: '#f2aede',
+    brightCyan: '#6bd7ca',
+    brightWhite: '#bac2de'
+  }
+}
+
+/** Everforest — warm, low-contrast forest greens (sainnhe.everforest). */
+export const everforestTheme: DesktopTheme = {
+  name: 'everforest',
+  label: 'Everforest',
+  description: 'Warm, low-contrast forest greens',
+  colors: {
+    background: '#fdf6e3',
+    foreground: '#5c6a72',
+    card: '#fdf6e3',
+    cardForeground: '#5c6a72',
+    muted: '#f7f0de',
+    mutedForeground: '#939f91',
+    popover: '#fdf6e3',
+    popoverForeground: '#5c6a72',
+    primary: '#586b35',
+    primaryForeground: '#ffffff',
+    secondary: '#e6e3cb',
+    secondaryForeground: '#5c6a72',
+    accent: '#e9e5ce',
+    accentForeground: '#5c6a72',
+    border: '#fdf6e3',
+    input: '#fdf6e3',
+    ring: '#586b35',
+    midground: '#586b35',
+    midgroundForeground: '#ffffff',
+    composerRing: '#586b35',
+    destructive: '#f1706f',
+    destructiveForeground: '#ffffff',
+    sidebarBackground: '#fdf6e3',
+    sidebarBorder: '#fdf6e3',
+    userBubble: '#e9e5ce',
+    userBubbleBorder: '#fdf6e3'
+  },
+  darkColors: {
+    background: '#2d353b',
+    foreground: '#d3c6aa',
+    card: '#2d353b',
+    cardForeground: '#d3c6aa',
+    muted: '#373e42',
+    mutedForeground: '#859289',
+    popover: '#2d353b',
+    popoverForeground: '#d3c6aa',
+    primary: '#a7c080',
+    primaryForeground: '#ffffff',
+    secondary: '#4f5c4e',
+    secondaryForeground: '#d3c6aa',
+    accent: '#434e47',
+    accentForeground: '#d3c6aa',
+    border: '#2d353b',
+    input: '#2d353b',
+    ring: '#a7c080',
+    midground: '#a7c080',
+    midgroundForeground: '#ffffff',
+    composerRing: '#a7c080',
+    destructive: '#da6362',
+    destructiveForeground: '#ffffff',
+    sidebarBackground: '#2d353b',
+    sidebarBorder: '#2d353b',
+    userBubble: '#434e47',
+    userBubbleBorder: '#2d353b'
+  },
+  terminal: {
+    foreground: '#5c6a72',
+    cursor: '#5c6a72',
+    black: '#5c6a72',
+    red: '#f85552',
+    green: '#8da101',
+    yellow: '#dfa000',
+    blue: '#3a94c5',
+    magenta: '#df69ba',
+    cyan: '#35a77c',
+    white: '#939f91',
+    brightBlack: '#5c6a72',
+    brightRed: '#f85552',
+    brightGreen: '#8da101',
+    brightYellow: '#dfa000',
+    brightBlue: '#3a94c5',
+    brightMagenta: '#df69ba',
+    brightCyan: '#35a77c',
+    brightWhite: '#f4f0d9'
+  },
+  darkTerminal: {
+    foreground: '#d3c6aa',
+    cursor: '#d3c6aa',
+    black: '#343f44',
+    red: '#e67e80',
+    green: '#a7c080',
+    yellow: '#dbbc7f',
+    blue: '#7fbbb3',
+    magenta: '#d699b6',
+    cyan: '#83c092',
+    white: '#d3c6aa',
+    brightBlack: '#859289',
+    brightRed: '#e67e80',
+    brightGreen: '#a7c080',
+    brightYellow: '#dbbc7f',
+    brightBlue: '#7fbbb3',
+    brightMagenta: '#d699b6',
+    brightCyan: '#83c092',
+    brightWhite: '#d3c6aa'
+  }
+}
+
+/** Solarized — Ethan Schoonover's fixed-contrast pair (ryanolsonx.solarized). */
+export const solarizedTheme: DesktopTheme = {
+  name: 'solarized',
+  label: 'Solarized',
+  description: 'Fixed-contrast light and dark',
+  colors: {
+    background: '#fdf6e3',
+    foreground: '#1f1f1f',
+    card: '#d3cbb7',
+    cardForeground: '#1f1f1f',
+    muted: '#f4eddb',
+    mutedForeground: '#9ca8a6',
+    popover: '#eee8d5',
+    popoverForeground: '#1f1f1f',
+    primary: '#675e34',
+    primaryForeground: '#ffffff',
+    secondary: '#e8e1cb',
+    secondaryForeground: '#1f1f1f',
+    accent: '#ebe4ce',
+    accentForeground: '#1f1f1f',
+    border: '#ddd6c1',
+    input: '#ddd6c1',
+    ring: '#675e34',
+    midground: '#675e34',
+    midgroundForeground: '#ffffff',
+    composerRing: '#675e34',
+    destructive: '#e25563',
+    destructiveForeground: '#ffffff',
+    sidebarBackground: '#eee8d5',
+    sidebarBorder: '#ddd6c1',
+    userBubble: '#c6bea7',
+    userBubbleBorder: '#ddd6c1'
+  },
+  darkColors: {
+    background: '#002b36',
+    foreground: '#839496',
+    card: '#002b36',
+    cardForeground: '#839496',
+    muted: '#08313c',
+    mutedForeground: '#586e75',
+    popover: '#001f26',
+    popoverForeground: '#839496',
+    primary: '#6ea1c4',
+    primaryForeground: '#ffffff',
+    secondary: '#1f4c5e',
+    secondaryForeground: '#839496',
+    accent: '#144050',
+    accentForeground: '#839496',
+    border: '#234751',
+    input: '#073642',
+    ring: '#6ea1c4',
+    midground: '#6ea1c4',
+    midgroundForeground: '#ffffff',
+    composerRing: '#6ea1c4',
+    destructive: '#e35957',
+    destructiveForeground: '#ffffff',
+    sidebarBackground: '#001f26',
+    sidebarBorder: '#234751',
+    userBubble: '#144050',
+    userBubbleBorder: '#234751'
+  },
+  terminal: {
+    foreground: '#657b83',
+    black: '#657b83',
+    red: '#dc322f',
+    green: '#859900',
+    yellow: '#b58900',
+    blue: '#268bd2',
+    magenta: '#d33682',
+    cyan: '#2aa198',
+    white: '#eee8d5',
+    brightBlack: '#657b83',
+    brightRed: '#cb4b16',
+    brightGreen: '#859900',
+    brightYellow: '#657b83',
+    brightBlue: '#839496',
+    brightMagenta: '#6c71c4',
+    brightCyan: '#93a1a1',
+    brightWhite: '#eee8d5'
+  },
+  darkTerminal: {
+    foreground: '#839496',
+    cursor: '#ffffff',
+    selectionBackground: '#ffffff40',
+    black: '#14181d',
+    red: '#dc322f',
+    green: '#859900',
+    yellow: '#b58900',
+    blue: '#268bd2',
+    magenta: '#d33682',
+    cyan: '#2aa198',
+    white: '#e5e5e5',
+    brightBlack: '#676767',
+    brightRed: '#dc322f',
+    brightGreen: '#859900',
+    brightYellow: '#b58900',
+    brightBlue: '#268bd2',
+    brightMagenta: '#d33682',
+    brightCyan: '#2aa198',
+    brightWhite: '#e5e5e5'
   }
 }
 
@@ -278,11 +731,14 @@ export const slateTheme: DesktopTheme = {
 
 export const BUILTIN_THEMES: Record<string, DesktopTheme> = {
   nous: nousTheme,
-  midnight: midnightTheme,
+  github: githubTheme,
+  catppuccin: catppuccinTheme,
+  everforest: everforestTheme,
+  solarized: solarizedTheme,
   ember: emberTheme,
   mono: monoTheme,
-  cyberpunk: cyberpunkTheme,
-  slate: slateTheme
+  slate: slateTheme,
+  cyberpunk: cyberpunkTheme
 }
 
 export const BUILTIN_THEME_LIST = Object.values(BUILTIN_THEMES)
diff --git a/apps/desktop/src/themes/profile-theme.test.ts b/apps/desktop/src/themes/profile-theme.test.ts
index ce4a46dc44..34ec517aa9 100644
--- a/apps/desktop/src/themes/profile-theme.test.ts
+++ b/apps/desktop/src/themes/profile-theme.test.ts
@@ -15,7 +15,7 @@ const cases = [
     pref: skinPref as unknown as Pref,
     fallback: DEFAULT_SKIN_NAME,
     a: 'ember',
-    b: 'midnight',
+    b: 'catppuccin',
     junk: 'nope'
   },
   { name: 'mode', pref: modePref as unknown as Pref, fallback: 'light', a: 'dark', b: 'system', junk: 'dusk' }