docs: document KaizenIcons as 7th design system pillar

Icon system is now the 7th pillar alongside P3 color, squircle shapes,
GlassSurface, multi-layer shadows, 4-theme system, and sensor motion.
Documents the Lucide base, custom override architecture, semantic
grouping, and how to add hand-drawn SVG overrides. Also documents the
unified top bar redesign (merged sidebar + model pill).

CLAUDE.md

@@ -47,6 +47,7 @@ settings/       SettingsScreen, SettingsViewModel, SettingsComponents, SecurityS
 ui/
   theme/        Color (P3), Theme (multi-theme), Type, Oklab, Dither
   theme/themes/ AccentScheme, AmberTheme, BlauTheme, MonoTheme, AuroraTheme, ThemeRegistry
+  icon/         KaizenIcons (central registry, Lucide base, custom override layer)
   shape/        SquircleShape (superellipse), KaizenShapes (token system)
   effect/       GlassSurface (frosted glass), Shadow (multi-layer stack)
   motion/       Motion (easing curves, spring specs, duration tokens)
@@ -65,7 +66,7 @@ ui/
 
 Full spec: `DESIGN.md`.
 
-**Six pillars** (load-bearing — if any regress, the design regresses):
+**Seven pillars** (load-bearing — if any regress, the design regresses):
 
 1. **P3 color pipeline** — all tokens in DisplayP3 color space (`Color.kt`). `window.colorMode = COLOR_MODE_HDR` (API 34+) / `COLOR_MODE_WIDE_COLOR_GAMUT` (API 26+) in `MainActivity`. No `Color(0xFF…)` for brand colors outside `Color.kt`.
 2. **Squircle shapes** — iOS-style superellipse with G2 continuity (`ui/shape/Squircle.kt`). Token system `KaizenShapes.{xs,sm,md,lg,xl,pill,circle}`. Replaces all `RoundedCornerShape`.
@@ -73,14 +74,17 @@ Full spec: `DESIGN.md`.
 4. **Multi-layer shadows** — `ShadowStack` with 2–4 overlapping layers (`KaizenShadows.level0..4`). Dark mode multiplies alphas ×1.8. Replaces all `Modifier.shadow()`.
 5. **4-theme system** — Amber/Blau/Mono/Aurora. Each theme = `KaizenAccentScheme` (primary + 4 blob colors). Neutrals are theme-independent. `LocalKaizenAccent` CompositionLocal. Theme selection wired end-to-end: `SettingsViewModel.selectedTheme` → `MainActivity` → `KaizenTheme(themeId=...)`. No server sync (web stores in localStorage, app stores locally). Appearance (Light/Dark/System) also wired end-to-end.
 6. **Sensor-reactive motion** — `rememberTiltState()` provides smoothed tilt `Offset(-1..1)`. Uses `TYPE_GAME_ROTATION_VECTOR` (fused, no drift). Auto-disables on battery saver, reduced motion, background, extreme tilt.
+7. **KaizenIcons** (`ui/icon/KaizenIcons.kt`) — centralized icon registry, same architecture as Google's Luminous Symbols. Lucide (1.5px stroke, same library as web frontend) as base, with a custom override layer for brand-critical icons. Every UI component references `KaizenIcons.Send`, `KaizenIcons.Lock`, etc. — never a library directly. Zero Material Icon imports remain. To add a custom icon: create an `ImageVector` literal (hand-drawn SVG converted to Compose path data) and swap the getter in `KaizenIcons.kt` — all usages update instantly, no call-site changes. Icons grouped semantically: Navigation, Chat, Modes, Conversation, Files, Search, Settings, Scroll. `com.composables:icons-lucide-android:1.0.0`.
 
 **Motion tokens** (`ui/motion/Motion.kt`): `EaseSpring` (overshoot), `EaseSmooth` (expo-out), `EaseEmphasized` (M3), `SpringSnappy/Default/Gentle`. All durations centralised in `Durations` object.
 
-**Migration status:** All UI components migrated to the design system. Sidebar, ChatInput, ChatScreen, LoginScreen, ModelSheet, SettingsCard, SettingsScreen use `GlassSurface` + `KaizenShapes` + `kaizenShadow`. Only Markdown code-block shapes remain as `RoundedCornerShape` (intentionally rectangular for code).
+**Migration status:** All UI components migrated to the design system. Sidebar, ChatInput, ChatScreen, LoginScreen, ModelSheet, SettingsCard, SettingsScreen use `GlassSurface` + `KaizenShapes` + `kaizenShadow` + `KaizenIcons`. Only Markdown code-block shapes remain as `RoundedCornerShape` (intentionally rectangular for code). All icons migrated from Material Icons Rounded to KaizenIcons/Lucide — zero `Icons.Rounded.*` imports remain.
 
 **Theme switching fully wired:** All 7 files that previously imported hardcoded `Amber`/`AmberDeep`/`OnAmber`/`BlobX` now read from `LocalKaizenAccent.current`. Changing theme in Settings immediately updates: message bubbles, send button, orb, mesh background blobs, sidebar highlights, model sheet, stream blocks, login screen, settings toggles. No hardcoded amber imports remain outside `Color.kt` and theme definitions.
 
-**Floating bar scrims:** Top bar (hamburger + model pill) and bottom dock (mode pills + input) have vertical gradient scrims (`MaterialTheme.colorScheme.background` → transparent) to prevent message content from bleeding through. Model pill opacity increased to 0.92.
+**Floating bar scrims:** Top bar and bottom dock have vertical gradient scrims (`MaterialTheme.colorScheme.background` → transparent) to prevent message content from bleeding through.
+
+**Unified top bar:** Sidebar trigger (menu icon) and model name merged into a single `GlassSurface` pill (38dp, `KaizenShapes.pill`). Menu icon (17dp, muted) → 3dp dot divider → model name (13sp Medium, 180dp max with ellipsis). No chevron — pill is self-evidently tappable. Matches the TokenBadge glass language on the right.
 
 **KaizenOrb** (`chat/Background.kt`) uses `rememberTiltState()` from `ui/sensor/` instead of inline sensor code. Breath animation uses `Durations.ORB_BREATH` / `ORB_BREATH_STREAMING` from `ui/motion/`.
 

app/build.gradle.kts

@@ -46,6 +46,7 @@ dependencies {
     implementation(libs.androidx.activity.compose)
     implementation(libs.androidx.compose.material3)
     implementation(libs.androidx.compose.material.icons.extended)
+    implementation(libs.compose.icons.lucide)
     implementation(libs.androidx.compose.ui)
     implementation(libs.androidx.compose.ui.graphics)
     implementation(libs.androidx.compose.ui.tooling.preview)

app/src/main/java/dev/kaizen/app/chat/ChatComponents.kt

@@ -39,10 +39,6 @@ import androidx.compose.foundation.layout.widthIn
 import androidx.compose.foundation.rememberScrollState
 import androidx.compose.foundation.text.BasicTextField
 import androidx.compose.foundation.verticalScroll
-import androidx.compose.material.icons.Icons
-import androidx.compose.material.icons.rounded.Add
-import androidx.compose.material.icons.rounded.CameraAlt
-import androidx.compose.material.icons.rounded.Call
 import androidx.compose.material3.Icon
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Text
@@ -79,28 +75,12 @@ import java.time.format.DateTimeFormatter
 import java.util.Locale
 import android.graphics.BitmapFactory
 import androidx.compose.foundation.Image
-import androidx.compose.material.icons.rounded.AudioFile
-import androidx.compose.material.icons.rounded.Close
-import androidx.compose.material.icons.rounded.Code
-import androidx.compose.material.icons.rounded.Image
-import androidx.compose.material.icons.automirrored.rounded.InsertDriveFile
-import androidx.compose.material.icons.rounded.PictureAsPdf
-import androidx.compose.material.icons.rounded.VideoFile
 import androidx.compose.runtime.mutableStateOf
 import androidx.compose.runtime.setValue
-import androidx.compose.material.icons.rounded.Bolt
-import androidx.compose.material.icons.rounded.Check
-import androidx.compose.material.icons.rounded.ContentCopy
-import androidx.compose.material.icons.rounded.Delete
-import androidx.compose.material.icons.rounded.Mic
-import androidx.compose.material.icons.rounded.Refresh
 import androidx.compose.ui.platform.LocalClipboard
 import dev.kaizen.app.haptics.rememberHaptics
 import androidx.compose.runtime.rememberCoroutineScope
 import kotlinx.coroutines.launch
-import androidx.compose.material.icons.rounded.ExpandMore
-import androidx.compose.material.icons.rounded.Psychology
-import androidx.compose.material.icons.rounded.Tune
 import androidx.compose.runtime.setValue
 import androidx.compose.ui.graphics.ImageBitmap
 import androidx.compose.ui.graphics.asImageBitmap
@@ -111,6 +91,7 @@ import kotlinx.coroutines.withContext
 import okhttp3.OkHttpClient
 import okhttp3.Request
 import java.util.concurrent.TimeUnit
+import dev.kaizen.app.ui.icon.KaizenIcons
 
 @Composable
 fun KaizenHeader(modifier: Modifier = Modifier) {
@@ -199,11 +180,11 @@ fun ModePillsRow(
                     .padding(horizontal = 13.dp, vertical = 8.dp),
                 verticalAlignment = Alignment.CenterVertically,
             ) {
-                Icon(Icons.Rounded.Psychology, null, tint = cs.onSurfaceVariant, modifier = Modifier.size(16.dp))
+                Icon(KaizenIcons.Brain, null, tint = cs.onSurfaceVariant, modifier = Modifier.size(16.dp))
                 Spacer(Modifier.width(6.dp))
                 Text(stringResource(reasoningPreset.label), color = cs.onSurfaceVariant, fontSize = 13.sp, fontWeight = FontWeight.Medium)
                 Spacer(Modifier.width(4.dp))
-                Icon(Icons.Rounded.ExpandMore, null, tint = cs.onSurfaceVariant.copy(alpha = 0.5f), modifier = Modifier.size(14.dp))
+                Icon(KaizenIcons.ChevronDown, null, tint = cs.onSurfaceVariant.copy(alpha = 0.5f), modifier = Modifier.size(14.dp))
             }
             DropdownMenu(expanded = showReasoningMenu, onDismissRequest = { showReasoningMenu = false }) {
                 ReasoningPreset.entries.forEach { preset ->
@@ -234,11 +215,11 @@ fun ModePillsRow(
                     .padding(horizontal = 13.dp, vertical = 8.dp),
                 verticalAlignment = Alignment.CenterVertically,
             ) {
-                Icon(Icons.Rounded.Tune, null, tint = if (anyEnabled) accent.primary else cs.onSurfaceVariant, modifier = Modifier.size(16.dp))
+                Icon(KaizenIcons.SlidersHorizontal, null, tint = if (anyEnabled) accent.primary else cs.onSurfaceVariant, modifier = Modifier.size(16.dp))
                 Spacer(Modifier.width(6.dp))
                 Text(stringResource(R.string.mode_sampling), color = if (anyEnabled) cs.onBackground else cs.onSurfaceVariant, fontSize = 13.sp, fontWeight = FontWeight.Medium)
                 Spacer(Modifier.width(4.dp))
-                Icon(Icons.Rounded.ExpandMore, null, tint = cs.onSurfaceVariant.copy(alpha = 0.5f), modifier = Modifier.size(14.dp))
+                Icon(KaizenIcons.ChevronDown, null, tint = cs.onSurfaceVariant.copy(alpha = 0.5f), modifier = Modifier.size(14.dp))
             }
             DropdownMenu(expanded = showSamplingPopup, onDismissRequest = { showSamplingPopup = false }) {
                 Column(Modifier.padding(horizontal = 16.dp, vertical = 8.dp).width(240.dp)) {
@@ -332,7 +313,7 @@ fun TokenBadge(used: Int, contextLength: Int, modifier: Modifier = Modifier) {
             Modifier.padding(horizontal = 10.dp, vertical = 7.dp),
             verticalAlignment = Alignment.CenterVertically,
         ) {
-            Icon(Icons.Rounded.Bolt, null, tint = accent.primary, modifier = Modifier.size(14.dp))
+            Icon(KaizenIcons.Zap, null, tint = accent.primary, modifier = Modifier.size(14.dp))
             Spacer(Modifier.width(4.dp))
             Text(
                 "${formatK(used)} / ${formatK(contextLength)}",
@@ -416,7 +397,7 @@ fun MessageRow(
                 horizontalArrangement = Arrangement.spacedBy(2.dp),
             ) {
                 MessageActionButton(
-                    icon = if (copied) Icons.Rounded.Check else Icons.Rounded.ContentCopy,
+                    icon = if (copied) KaizenIcons.Check else KaizenIcons.Copy,
                     tint = if (copied) Color(0xFF10B981) else cs.onSurfaceVariant.copy(alpha = 0.35f),
                 ) {
                     haptics.tick()
@@ -428,7 +409,7 @@ fun MessageRow(
                     }
                 }
                 onDelete?.let { del ->
-                    MessageActionButton(Icons.Rounded.Delete, Color(0xFFEF4444).copy(alpha = 0.6f)) {
+                    MessageActionButton(KaizenIcons.Trash, Color(0xFFEF4444).copy(alpha = 0.6f)) {
                         haptics.tick(); del(message.wireId)
                     }
                 }
@@ -469,7 +450,7 @@ fun MessageRow(
                 horizontalArrangement = Arrangement.spacedBy(2.dp),
             ) {
                 MessageActionButton(
-                    icon = if (copied) Icons.Rounded.Check else Icons.Rounded.ContentCopy,
+                    icon = if (copied) KaizenIcons.Check else KaizenIcons.Copy,
                     tint = if (copied) Color(0xFF10B981) else cs.onSurfaceVariant.copy(alpha = 0.35f),
                 ) {
                     haptics.tick()
@@ -481,12 +462,12 @@ fun MessageRow(
                     }
                 }
                 onRegenerate?.let { regen ->
-                    MessageActionButton(Icons.Rounded.Refresh, cs.onSurfaceVariant.copy(alpha = 0.35f)) {
+                    MessageActionButton(KaizenIcons.RefreshCw, cs.onSurfaceVariant.copy(alpha = 0.35f)) {
                         haptics.tick(); regen(message.wireId)
                     }
                 }
                 onDelete?.let { del ->
-                    MessageActionButton(Icons.Rounded.Delete, Color(0xFFEF4444).copy(alpha = 0.6f)) {
+                    MessageActionButton(KaizenIcons.Trash, Color(0xFFEF4444).copy(alpha = 0.6f)) {
                         haptics.tick(); del(message.wireId)
                     }
                 }
@@ -575,7 +556,7 @@ fun ChatInput(
             }
             Row(Modifier.padding(start = 6.dp, end = 8.dp, top = 10.dp, bottom = 10.dp), verticalAlignment = Alignment.Bottom) {
                 Box(Modifier.size(42.dp).clip(KaizenShapes.circle).clickable(onClick = onAddClick), contentAlignment = Alignment.Center) {
-                    Icon(Icons.Rounded.Add, stringResource(R.string.chat_attachment), tint = cs.onSurfaceVariant, modifier = Modifier.size(22.dp))
+                    Icon(KaizenIcons.Plus, stringResource(R.string.chat_attachment), tint = cs.onSurfaceVariant, modifier = Modifier.size(22.dp))
                 }
                 Box(Modifier.weight(1f).heightIn(min = 42.dp).padding(horizontal = 6.dp), contentAlignment = Alignment.CenterStart) {
                     if (value.isEmpty()) Text(stringResource(R.string.chat_input_placeholder), color = cs.onSurfaceVariant.copy(alpha = 0.6f), fontSize = 15.sp)
@@ -591,7 +572,7 @@ fun ChatInput(
                     SendButton(enabled = canSend, onClick = onSend)
                 } else {
                     Box(Modifier.size(44.dp).clip(KaizenShapes.circle), contentAlignment = Alignment.Center) {
-                        Icon(Icons.Rounded.Mic, stringResource(R.string.chat_call), tint = cs.onSurfaceVariant, modifier = Modifier.size(22.dp))
+                        Icon(KaizenIcons.Mic, stringResource(R.string.chat_call), tint = cs.onSurfaceVariant, modifier = Modifier.size(22.dp))
                     }
                 }
             }
@@ -611,11 +592,11 @@ private fun PendingFileChip(pf: PendingFile, onRemove: () -> Unit) {
             NetworkImage(url = pf.uploaded.url, contentDescription = pf.name, modifier = Modifier.fillMaxSize().clip(KaizenShapes.xs))
         } else {
             val icon = when {
-                pf.mimeType.startsWith("image/") -> Icons.Rounded.Image
+                pf.mimeType.startsWith("image/") -> KaizenIcons.Image
-                pf.mimeType.startsWith("video/") -> Icons.Rounded.VideoFile
+                pf.mimeType.startsWith("video/") -> KaizenIcons.FileVideo
-                pf.mimeType.startsWith("audio/") -> Icons.Rounded.AudioFile
+                pf.mimeType.startsWith("audio/") -> KaizenIcons.FileAudio
-                pf.mimeType == "application/pdf" -> Icons.Rounded.PictureAsPdf
+                pf.mimeType == "application/pdf" -> KaizenIcons.FileText
-                else -> Icons.AutoMirrored.Rounded.InsertDriveFile
+                else -> KaizenIcons.File
             }
             Column(horizontalAlignment = Alignment.CenterHorizontally) {
                 Icon(icon, null, tint = cs.onSurfaceVariant, modifier = Modifier.size(20.dp))
@@ -629,14 +610,14 @@ private fun PendingFileChip(pf: PendingFile, onRemove: () -> Unit) {
         }
         if (pf.error != null) {
             Box(Modifier.fillMaxSize().background(Color(0xFFDC2626).copy(alpha = 0.3f)), contentAlignment = Alignment.Center) {
-                Icon(Icons.Rounded.Close, stringResource(R.string.chat_error), tint = Color.White, modifier = Modifier.size(18.dp))
+                Icon(KaizenIcons.X, stringResource(R.string.chat_error), tint = Color.White, modifier = Modifier.size(18.dp))
             }
         }
         Box(
             Modifier.align(Alignment.TopEnd).padding(2.dp).size(18.dp).clip(KaizenShapes.circle).background(Color.Black.copy(alpha = 0.5f)).clickable(onClick = onRemove),
             contentAlignment = Alignment.Center,
         ) {
-            Icon(Icons.Rounded.Close, stringResource(R.string.chat_remove), tint = Color.White, modifier = Modifier.size(12.dp))
+            Icon(KaizenIcons.X, stringResource(R.string.chat_remove), tint = Color.White, modifier = Modifier.size(12.dp))
         }
     }
 }
@@ -718,11 +699,11 @@ private fun FileChip(attachment: Attachment) {
     val isDark = isSystemInDarkTheme()
     val bg = if (isDark) Color.White.copy(alpha = 0.08f) else Color.Black.copy(alpha = 0.06f)
     val icon = when (attachment.kind) {
-        "pdf" -> Icons.Rounded.PictureAsPdf
+        "pdf" -> KaizenIcons.FileText
-        "audio" -> Icons.Rounded.AudioFile
+        "audio" -> KaizenIcons.FileAudio
-        "video" -> Icons.Rounded.VideoFile
+        "video" -> KaizenIcons.FileVideo
-        "code" -> Icons.Rounded.Code
+        "code" -> KaizenIcons.Code
-        else -> Icons.AutoMirrored.Rounded.InsertDriveFile
+        else -> KaizenIcons.File
     }
     Row(Modifier.clip(KaizenShapes.xs).background(bg).padding(horizontal = 10.dp, vertical = 6.dp), verticalAlignment = Alignment.CenterVertically) {
         Icon(icon, null, tint = cs.onSurfaceVariant, modifier = Modifier.size(16.dp))
@@ -746,9 +727,9 @@ fun AttachmentMenu(
         verticalArrangement = Arrangement.spacedBy(8.dp),
         horizontalAlignment = Alignment.Start,
     ) {
-        AttachPill(Icons.Rounded.CameraAlt, stringResource(R.string.attach_camera), accent.primary, isDark, onCamera)
+        AttachPill(KaizenIcons.Camera, stringResource(R.string.attach_camera), accent.primary, isDark, onCamera)
-        AttachPill(Icons.Rounded.Image, stringResource(R.string.attach_gallery), Color(0xFF6366F1), isDark, onGallery)
+        AttachPill(KaizenIcons.Image, stringResource(R.string.attach_gallery), Color(0xFF6366F1), isDark, onGallery)
-        AttachPill(Icons.AutoMirrored.Rounded.InsertDriveFile, stringResource(R.string.attach_file), Color(0xFF10B981), isDark, onFile)
+        AttachPill(KaizenIcons.File, stringResource(R.string.attach_file), Color(0xFF10B981), isDark, onFile)
     }
 }
 

app/src/main/java/dev/kaizen/app/chat/ChatModels.kt

@@ -1,13 +1,5 @@
 package dev.kaizen.app.chat
 
-import androidx.compose.material.icons.Icons
-import androidx.compose.material.icons.rounded.Adjust
-import androidx.compose.material.icons.rounded.AutoAwesome
-import androidx.compose.material.icons.rounded.Image
-import androidx.compose.material.icons.rounded.Language
-import androidx.compose.material.icons.rounded.Movie
-import androidx.compose.material.icons.rounded.MusicNote
-import androidx.compose.material.icons.rounded.Tune
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.graphics.vector.ImageVector
 import androidx.compose.ui.res.stringResource
@@ -15,6 +7,7 @@ import dev.kaizen.app.R
 import dev.kaizen.app.net.Attachment
 import dev.kaizen.app.net.SearchSource
 import dev.kaizen.app.net.ToolEvent
+import dev.kaizen.app.ui.icon.KaizenIcons
 
 enum class Role { User, Assistant }
 
@@ -54,21 +47,21 @@ data class Message(
 data class Suggestion(val labelRes: Int, val promptRes: Int, val icon: ImageVector)
 
 val suggestions = listOf(
-    Suggestion(R.string.suggest_brainstorm, R.string.suggest_brainstorm_prompt, Icons.Rounded.AutoAwesome),
+    Suggestion(R.string.suggest_brainstorm, R.string.suggest_brainstorm_prompt, KaizenIcons.Sparkles),
-    Suggestion(R.string.suggest_image, R.string.suggest_image_prompt, Icons.Rounded.Image),
+    Suggestion(R.string.suggest_image, R.string.suggest_image_prompt, KaizenIcons.Image),
-    Suggestion(R.string.suggest_video, R.string.suggest_video_prompt, Icons.Rounded.Movie),
+    Suggestion(R.string.suggest_video, R.string.suggest_video_prompt, KaizenIcons.Video),
-    Suggestion(R.string.suggest_web, R.string.suggest_web_prompt, Icons.Rounded.Language),
+    Suggestion(R.string.suggest_web, R.string.suggest_web_prompt, KaizenIcons.Globe),
 )
 
 data class ChatMode(val labelRes: Int, val icon: ImageVector)
 
 val chatModes = listOf(
-    ChatMode(R.string.mode_standard, Icons.Rounded.Adjust),
+    ChatMode(R.string.mode_standard, KaizenIcons.CircleDot),
-    ChatMode(R.string.mode_sampling, Icons.Rounded.Tune),
+    ChatMode(R.string.mode_sampling, KaizenIcons.SlidersHorizontal),
-    ChatMode(R.string.mode_image, Icons.Rounded.Image),
+    ChatMode(R.string.mode_image, KaizenIcons.Image),
-    ChatMode(R.string.mode_search, Icons.Rounded.Language),
+    ChatMode(R.string.mode_search, KaizenIcons.Globe),
-    ChatMode(R.string.mode_video, Icons.Rounded.Movie),
+    ChatMode(R.string.mode_video, KaizenIcons.Video),
-    ChatMode(R.string.mode_audio, Icons.Rounded.MusicNote),
+    ChatMode(R.string.mode_audio, KaizenIcons.Music),
 )
 
 @Composable

app/src/main/java/dev/kaizen/app/chat/ChatScreen.kt

@@ -29,10 +29,7 @@ import androidx.compose.foundation.layout.widthIn
 import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.foundation.lazy.items
 import androidx.compose.foundation.lazy.rememberLazyListState
-import androidx.compose.material.icons.Icons
+import dev.kaizen.app.ui.icon.KaizenIcons
-import androidx.compose.material.icons.rounded.KeyboardArrowDown
-import androidx.compose.material.icons.rounded.KeyboardArrowUp
-import androidx.compose.material.icons.rounded.Menu
 import androidx.compose.material3.DrawerValue
 import androidx.compose.material3.Icon
 import androidx.compose.material3.MaterialTheme
@@ -665,7 +662,7 @@ fun ChatScreen(
                                             .clickable { scope.launch { listState.animateScrollToItem(0) } },
                                     ) {
                                         Box(Modifier.fillMaxSize(), contentAlignment = Alignment.Center) {
-                                            Icon(Icons.Rounded.KeyboardArrowUp, null, tint = MaterialTheme.colorScheme.onBackground, modifier = Modifier.size(20.dp))
+                                            Icon(KaizenIcons.ArrowUp, null, tint = MaterialTheme.colorScheme.onBackground, modifier = Modifier.size(20.dp))
                                         }
                                     }
                                 } else if (!atBottom && canScrollDown) {
@@ -681,7 +678,7 @@ fun ChatScreen(
                                             .clickable { scope.launch { listState.animateScrollToItem(messages.size - 1) } },
                                     ) {
                                         Box(Modifier.fillMaxSize(), contentAlignment = Alignment.Center) {
-                                            Icon(Icons.Rounded.KeyboardArrowDown, null, tint = MaterialTheme.colorScheme.onBackground, modifier = Modifier.size(20.dp))
+                                            Icon(KaizenIcons.ArrowDown, null, tint = MaterialTheme.colorScheme.onBackground, modifier = Modifier.size(20.dp))
                                         }
                                     }
                                 }
@@ -730,7 +727,7 @@ fun ChatScreen(
                                             contentAlignment = Alignment.Center,
                                         ) {
                                             Icon(
-                                                imageVector = Icons.Rounded.Menu,
+                                                imageVector = KaizenIcons.Menu,
                                                 contentDescription = context.getString(R.string.chat_open_menu),
                                                 tint = MaterialTheme.colorScheme.onSurfaceVariant,
                                                 modifier = Modifier.size(17.dp),

app/src/main/java/dev/kaizen/app/chat/Markdown.kt

@@ -19,9 +19,6 @@ import androidx.compose.foundation.layout.width
 import androidx.compose.foundation.rememberScrollState
 import androidx.compose.foundation.shape.RoundedCornerShape
 import dev.kaizen.app.ui.shape.KaizenShapes
-import androidx.compose.material.icons.Icons
-import androidx.compose.material.icons.rounded.Check
-import androidx.compose.material.icons.rounded.ContentCopy
 import androidx.compose.material3.Icon
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Text
@@ -49,6 +46,7 @@ import androidx.compose.ui.unit.sp
 import dev.kaizen.app.haptics.rememberHaptics
 import kotlinx.coroutines.delay
 import kotlinx.coroutines.launch
+import dev.kaizen.app.ui.icon.KaizenIcons
 
 private sealed interface MdBlock {
     data class Paragraph(val text: String) : MdBlock
@@ -526,7 +524,7 @@ private fun CopyButton(code: String) {
         contentAlignment = Alignment.Center,
     ) {
         Icon(
-            imageVector = if (copied) Icons.Rounded.Check else Icons.Rounded.ContentCopy,
+            imageVector = if (copied) KaizenIcons.Check else KaizenIcons.Copy,
             contentDescription = "Kopieren",
             tint = if (copied) Color(0xFF22C55E) else cs.onSurfaceVariant.copy(alpha = 0.5f),
             modifier = Modifier.size(14.dp),

app/src/main/java/dev/kaizen/app/chat/ModelSheet.kt

@@ -8,8 +8,6 @@ import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.foundation.lazy.items
 import dev.kaizen.app.ui.shape.KaizenShapes
 import androidx.compose.foundation.text.BasicTextField
-import androidx.compose.material.icons.Icons
-import androidx.compose.material.icons.rounded.*
 import androidx.compose.material3.*
 import androidx.compose.runtime.*
 import androidx.compose.ui.Alignment
@@ -25,6 +23,7 @@ import dev.kaizen.app.R
 import androidx.compose.ui.res.stringResource
 import dev.kaizen.app.ui.theme.LocalKaizenAccent
 import dev.kaizen.app.haptics.rememberHaptics
+import dev.kaizen.app.ui.icon.KaizenIcons
 
 /** Human label + composite-id resolver for the top pill — falls back to a de-prefixed id. */
 fun modelDisplayName(modelId: String, models: List<KaizenModel>): String =
@@ -52,7 +51,7 @@ fun ModelPill(label: String, onClick: () -> Unit, modifier: Modifier = Modifier)
             maxLines = 1,
         )
         Icon(
-            Icons.Rounded.ExpandMore,
+            KaizenIcons.ChevronDown,
             contentDescription = null,
             tint = cs.onSurfaceVariant,
             modifier = Modifier.size(18.dp),
@@ -139,7 +138,7 @@ fun ModelSheet(
                 verticalAlignment = Alignment.CenterVertically
             ) {
                 Icon(
-                    Icons.Rounded.Search,
+                    KaizenIcons.Search,
                     contentDescription = null,
                     tint = cs.onSurfaceVariant.copy(alpha = 0.6f),
                     modifier = Modifier.size(18.dp)
@@ -167,7 +166,7 @@ fun ModelSheet(
                 }
                 if (query.isNotEmpty()) {
                     Icon(
-                        Icons.Rounded.Close,
+                        KaizenIcons.X,
                         contentDescription = stringResource(R.string.model_search_clear),
                         tint = cs.onSurfaceVariant.copy(alpha = 0.6f),
                         modifier = Modifier
@@ -294,7 +293,7 @@ private fun ModelRow(
             contentAlignment = Alignment.Center,
         ) {
             Icon(
-                imageVector = if (favorite) Icons.Rounded.Star else Icons.Rounded.StarBorder,
+                imageVector = if (favorite) KaizenIcons.Star else KaizenIcons.StarOff,
                 contentDescription = stringResource(R.string.model_favorite),
                 tint = if (favorite) accent.primary else cs.onSurfaceVariant.copy(alpha = 0.35f),
                 modifier = Modifier.size(20.dp),
@@ -304,7 +303,7 @@ private fun ModelRow(
         if (selected) {
             Spacer(Modifier.size(4.dp))
             Icon(
-                Icons.Rounded.Check,
+                KaizenIcons.Check,
                 contentDescription = stringResource(R.string.model_selected),
                 tint = accent.primary,
                 modifier = Modifier.size(20.dp)

app/src/main/java/dev/kaizen/app/chat/Sidebar.kt

@@ -22,17 +22,6 @@ import androidx.compose.foundation.lazy.items
 import androidx.compose.foundation.text.BasicTextField
 import androidx.compose.foundation.text.KeyboardActions
 import androidx.compose.foundation.text.KeyboardOptions
-import androidx.compose.material.icons.Icons
-import androidx.compose.material.icons.automirrored.rounded.Logout
-import androidx.compose.material.icons.rounded.Delete
-import androidx.compose.material.icons.rounded.Edit
-import androidx.compose.material.icons.rounded.Lock
-import androidx.compose.material.icons.rounded.LockOpen
-import androidx.compose.material.icons.rounded.MoreVert
-import androidx.compose.material.icons.rounded.PushPin
-import androidx.compose.material.icons.rounded.Search
-import androidx.compose.material.icons.rounded.Settings
-import androidx.compose.material.icons.rounded.Star
 import androidx.compose.material3.AlertDialog
 import androidx.compose.ui.graphics.vector.ImageVector
 import androidx.compose.material3.Icon
@@ -70,6 +59,7 @@ import java.time.LocalDate
 import java.time.ZoneId
 import java.time.format.DateTimeFormatter
 import java.util.Locale
+import dev.kaizen.app.ui.icon.KaizenIcons
 
 private data class DateLabels(val today: String, val yesterday: String, val earlier: String, val pinned: String)
 
@@ -156,7 +146,7 @@ fun KaizenSidebar(
                         .clickable { onNewChat() },
                     contentAlignment = Alignment.Center
                 ) {
-                    Icon(Icons.Rounded.Edit, stringResource(R.string.chat_new), tint = cs.onBackground, modifier = Modifier.size(17.dp))
+                    Icon(KaizenIcons.Pencil, stringResource(R.string.chat_new), tint = cs.onBackground, modifier = Modifier.size(17.dp))
                 }
             }
 
@@ -171,7 +161,7 @@ fun KaizenSidebar(
                     .padding(horizontal = 14.dp, vertical = 9.dp),
                 verticalAlignment = Alignment.CenterVertically
             ) {
-                Icon(Icons.Rounded.Search, null, tint = cs.onSurfaceVariant.copy(alpha = 0.45f), modifier = Modifier.size(16.dp))
+                Icon(KaizenIcons.Search, null, tint = cs.onSurfaceVariant.copy(alpha = 0.45f), modifier = Modifier.size(16.dp))
                 Spacer(Modifier.width(8.dp))
                 Text(stringResource(R.string.chat_search), color = cs.onSurfaceVariant.copy(alpha = 0.45f), fontSize = 13.sp)
             }
@@ -261,7 +251,7 @@ fun KaizenSidebar(
                     modifier = Modifier.weight(1f),
                 )
                 Icon(
-                    Icons.Rounded.Settings,
+                    KaizenIcons.Settings,
                     stringResource(R.string.sidebar_settings),
                     tint = cs.onSurfaceVariant.copy(alpha = 0.5f),
                     modifier = Modifier.size(18.dp),
@@ -275,7 +265,7 @@ fun KaizenSidebar(
                     contentAlignment = Alignment.Center,
                 ) {
                     Icon(
-                        Icons.AutoMirrored.Rounded.Logout,
+                        KaizenIcons.LogOut,
                         stringResource(R.string.sidebar_logout),
                         tint = cs.onSurfaceVariant.copy(alpha = 0.5f),
                         modifier = Modifier.size(16.dp),
@@ -389,7 +379,7 @@ private fun HistoryItemRow(
             verticalAlignment = Alignment.CenterVertically
         ) {
             if (item.pinned) {
-                Icon(Icons.Rounded.Star, null, tint = accent.primary.copy(alpha = 0.7f), modifier = Modifier.size(13.dp))
+                Icon(KaizenIcons.Star, null, tint = accent.primary.copy(alpha = 0.7f), modifier = Modifier.size(13.dp))
                 Spacer(Modifier.width(6.dp))
             }
             Text(
@@ -403,7 +393,7 @@ private fun HistoryItemRow(
                 modifier = Modifier.weight(1f),
             )
             if (item.locked) {
-                Icon(Icons.Rounded.Lock, null, tint = accent.primary.copy(alpha = 0.5f), modifier = Modifier.size(13.dp))
+                Icon(KaizenIcons.Lock, null, tint = accent.primary.copy(alpha = 0.5f), modifier = Modifier.size(13.dp))
                 Spacer(Modifier.width(2.dp))
             }
             Box(
@@ -414,7 +404,7 @@ private fun HistoryItemRow(
                 contentAlignment = Alignment.Center,
             ) {
                 Icon(
-                    Icons.Rounded.MoreVert,
+                    KaizenIcons.MoreVertical,
                     stringResource(R.string.sidebar_more),
                     tint = cs.onSurfaceVariant.copy(alpha = 0.35f),
                     modifier = Modifier.size(16.dp),
@@ -430,15 +420,15 @@ private fun HistoryItemRow(
             shape = KaizenShapes.md,
         ) {
             if (!item.locked) {
-                MenuRow(Icons.Rounded.Edit, stringResource(R.string.sidebar_rename), cs.onBackground) { showMenu = false; onRename() }
+                MenuRow(KaizenIcons.Pencil, stringResource(R.string.sidebar_rename), cs.onBackground) { showMenu = false; onRename() }
             }
-            MenuRow(Icons.Rounded.PushPin, stringResource(if (item.pinned) R.string.sidebar_unpin else R.string.sidebar_pin), cs.onBackground) { showMenu = false; onTogglePin() }
+            MenuRow(KaizenIcons.Pin, stringResource(if (item.pinned) R.string.sidebar_unpin else R.string.sidebar_pin), cs.onBackground) { showMenu = false; onTogglePin() }
             MenuRow(
-                if (item.locked) Icons.Rounded.LockOpen else Icons.Rounded.Lock,
+                if (item.locked) KaizenIcons.LockOpen else KaizenIcons.Lock,
                 stringResource(if (item.locked) R.string.sidebar_unlock else R.string.sidebar_lock),
                 cs.onBackground,
             ) { showMenu = false; onToggleLock() }
-            MenuRow(Icons.Rounded.Delete, stringResource(R.string.sidebar_delete), Color(0xFFEF4444)) { showMenu = false; onDelete() }
+            MenuRow(KaizenIcons.Trash, stringResource(R.string.sidebar_delete), Color(0xFFEF4444)) { showMenu = false; onDelete() }
         }
     }
 }

app/src/main/java/dev/kaizen/app/chat/StreamBlocks.kt

@@ -17,16 +17,6 @@ import androidx.compose.foundation.layout.height
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.size
 import androidx.compose.foundation.layout.width
-import androidx.compose.material.icons.Icons
-import androidx.compose.material.icons.rounded.Check
-import androidx.compose.material.icons.rounded.Error
-import androidx.compose.material.icons.rounded.ExpandLess
-import androidx.compose.material.icons.rounded.ExpandMore
-import androidx.compose.material.icons.rounded.Language
-import androidx.compose.material.icons.rounded.Psychology
-import androidx.compose.material.icons.rounded.AutoAwesome
-import androidx.compose.material.icons.rounded.Build
-import androidx.compose.material.icons.rounded.Description
 import androidx.compose.material3.Icon
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Text
@@ -50,6 +40,7 @@ import dev.kaizen.app.ui.shape.KaizenShapes
 import dev.kaizen.app.ui.theme.LocalKaizenAccent
 import androidx.compose.ui.platform.LocalContext
 import androidx.compose.ui.res.stringResource
+import dev.kaizen.app.ui.icon.KaizenIcons
 
 @Composable
 fun ReasoningBlock(reasoning: String, streaming: Boolean = false) {
@@ -75,7 +66,7 @@ fun ReasoningBlock(reasoning: String, streaming: Boolean = false) {
                 .padding(horizontal = 12.dp, vertical = 8.dp),
             verticalAlignment = Alignment.CenterVertically,
         ) {
-            Icon(Icons.Rounded.Psychology, null, tint = accent.primary, modifier = Modifier.size(16.dp))
+            Icon(KaizenIcons.Brain, null, tint = accent.primary, modifier = Modifier.size(16.dp))
             Spacer(Modifier.width(8.dp))
             Text(
                 stringResource(R.string.stream_reasoning),
@@ -85,7 +76,7 @@ fun ReasoningBlock(reasoning: String, streaming: Boolean = false) {
                 modifier = Modifier.weight(1f),
             )
             Icon(
-                if (expanded) Icons.Rounded.ExpandLess else Icons.Rounded.ExpandMore,
+                if (expanded) KaizenIcons.ChevronUp else KaizenIcons.ChevronDown,
                 null, tint = cs.onSurfaceVariant, modifier = Modifier.size(16.dp),
             )
         }
@@ -134,21 +125,21 @@ fun ToolEventsBlock(tools: List<ToolEvent>, streaming: Boolean = false) {
     Column(verticalArrangement = Arrangement.spacedBy(4.dp)) {
         if (analyzing != null) {
             Row(verticalAlignment = Alignment.CenterVertically) {
-                Icon(Icons.Rounded.Description, null, tint = accent.primary.copy(alpha = 0.6f), modifier = Modifier.size(14.dp))
+                Icon(KaizenIcons.FileText, null, tint = accent.primary.copy(alpha = 0.6f), modifier = Modifier.size(14.dp))
                 Spacer(Modifier.width(6.dp))
                 Text(stringResource(R.string.stream_tool_analyzing, analyzing!!), color = cs.onSurfaceVariant.copy(alpha = 0.6f), fontSize = 12.sp)
             }
         }
         if (thinking && analyzing == null && completed.isEmpty() && inProgress.isEmpty()) {
             Row(verticalAlignment = Alignment.CenterVertically) {
-                Icon(Icons.Rounded.AutoAwesome, null, tint = accent.primary.copy(alpha = 0.6f), modifier = Modifier.size(14.dp))
+                Icon(KaizenIcons.Sparkles, null, tint = accent.primary.copy(alpha = 0.6f), modifier = Modifier.size(14.dp))
                 Spacer(Modifier.width(6.dp))
                 Text(stringResource(R.string.stream_tool_thinking), color = cs.onSurfaceVariant.copy(alpha = 0.6f), fontSize = 12.sp)
             }
         }
         completed.forEach { tool ->
             Row(verticalAlignment = Alignment.CenterVertically) {
-                val icon = if (tool.type == "error") Icons.Rounded.Error else Icons.Rounded.Check
+                val icon = if (tool.type == "error") KaizenIcons.AlertCircle else KaizenIcons.Check
                 val tint = if (tool.type == "error") Color(0xFFEF4444) else Color(0xFF10B981)
                 Icon(icon, null, tint = tint, modifier = Modifier.size(14.dp))
                 Spacer(Modifier.width(6.dp))
@@ -161,7 +152,7 @@ fun ToolEventsBlock(tools: List<ToolEvent>, streaming: Boolean = false) {
         }
         inProgress.forEach { name ->
             Row(verticalAlignment = Alignment.CenterVertically) {
-                Icon(Icons.Rounded.Build, null, tint = accent.primary.copy(alpha = 0.6f), modifier = Modifier.size(14.dp))
+                Icon(KaizenIcons.Wrench, null, tint = accent.primary.copy(alpha = 0.6f), modifier = Modifier.size(14.dp))
                 Spacer(Modifier.width(6.dp))
                 Text(name, color = cs.onSurfaceVariant.copy(alpha = 0.7f), fontSize = 12.sp, fontWeight = FontWeight.Medium)
             }
@@ -184,7 +175,7 @@ fun SourcesBlock(sources: List<SearchSource>, query: String = "") {
                 .padding(vertical = 4.dp),
             verticalAlignment = Alignment.CenterVertically,
         ) {
-            Icon(Icons.Rounded.Language, null, tint = cs.onSurfaceVariant.copy(alpha = 0.6f), modifier = Modifier.size(13.dp))
+            Icon(KaizenIcons.Globe, null, tint = cs.onSurfaceVariant.copy(alpha = 0.6f), modifier = Modifier.size(13.dp))
             Spacer(Modifier.width(6.dp))
             Text(
                 stringResource(R.string.stream_sources) + " (${sources.size})",
@@ -194,7 +185,7 @@ fun SourcesBlock(sources: List<SearchSource>, query: String = "") {
             )
             Spacer(Modifier.width(4.dp))
             Icon(
-                if (expanded) Icons.Rounded.ExpandLess else Icons.Rounded.ExpandMore,
+                if (expanded) KaizenIcons.ChevronUp else KaizenIcons.ChevronDown,
                 null, tint = cs.onSurfaceVariant.copy(alpha = 0.4f), modifier = Modifier.size(12.dp),
             )
         }

app/src/main/java/dev/kaizen/app/settings/SecuritySection.kt

@@ -19,10 +19,6 @@ import androidx.compose.foundation.layout.width
 import androidx.compose.foundation.text.BasicTextField
 import androidx.compose.foundation.text.KeyboardActions
 import androidx.compose.foundation.text.KeyboardOptions
-import androidx.compose.material.icons.Icons
-import androidx.compose.material.icons.rounded.Fingerprint
-import androidx.compose.material.icons.rounded.Key
-import androidx.compose.material.icons.rounded.PhoneAndroid
 import androidx.compose.material3.CircularProgressIndicator
 import androidx.compose.material3.Icon
 import androidx.compose.material3.MaterialTheme
@@ -57,6 +53,7 @@ import dev.kaizen.app.net.AppDevice
 import dev.kaizen.app.net.ServerConfig
 import dev.kaizen.app.ui.shape.KaizenShapes
 import dev.kaizen.app.ui.theme.LocalKaizenAccent
+import dev.kaizen.app.ui.icon.KaizenIcons
 
 @Composable
 fun SecuritySection(
@@ -100,7 +97,7 @@ fun SecuritySection(
             title = stringResource(R.string.settings_biometric_title),
             description = if (biometricNotEnrolled) stringResource(R.string.settings_biometric_not_enrolled)
             else stringResource(R.string.settings_biometric_desc),
-            icon = Icons.Rounded.Fingerprint,
+            icon = KaizenIcons.Fingerprint,
         ) {
             Switch(
                 checked = biometricEnabled && biometricAvailable,
@@ -119,7 +116,7 @@ fun SecuritySection(
         SettingsOptionRow(
             title = stringResource(R.string.settings_devices_title),
             description = stringResource(R.string.settings_devices_desc),
-            icon = Icons.Rounded.PhoneAndroid,
+            icon = KaizenIcons.Smartphone,
         ) {
             if (devicesLoading) {
                 CircularProgressIndicator(
@@ -152,7 +149,7 @@ fun SecuritySection(
         SettingsOptionRow(
             title = stringResource(R.string.settings_password_title),
             description = "",
-            icon = Icons.Rounded.Key,
+            icon = KaizenIcons.Key,
         ) {
             PasswordChangeForm(
                 onSubmit = { current, new_ ->

app/src/main/java/dev/kaizen/app/settings/SettingsComponents.kt

@@ -31,8 +31,6 @@ import dev.kaizen.app.ui.effect.KaizenShadows
 import dev.kaizen.app.ui.shape.KaizenShapes
 import androidx.compose.foundation.text.BasicTextField
 import androidx.compose.foundation.verticalScroll
-import androidx.compose.material.icons.Icons
-import androidx.compose.material.icons.rounded.Check
 import androidx.compose.material3.Icon
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Text
@@ -57,6 +55,7 @@ import androidx.compose.ui.unit.sp
 import dev.kaizen.app.ui.theme.LocalKaizenAccent
 import dev.kaizen.app.ui.theme.Oklab
 import dev.kaizen.app.ui.theme.themes.KaizenThemeId
+import dev.kaizen.app.ui.icon.KaizenIcons
 
 /** Converts polar OKLCH coordinates (Lightness, Chroma, Hue in degrees) to a standard Color */
 private fun oklch(l: Float, c: Float, h: Float, alpha: Float = 1.0f): Color {
@@ -250,7 +249,7 @@ fun ThemeOptionPill(
         if (selected) {
             Box(Modifier.fillMaxSize(), contentAlignment = Alignment.Center) {
                 Icon(
-                    imageVector = Icons.Rounded.Check,
+                    imageVector = KaizenIcons.Check,
                     contentDescription = null,
                     tint = if (themeId == KaizenThemeId.MONO && isDark.not()) Color.White else Color.Black,
                     modifier = Modifier.size(16.dp)

app/src/main/java/dev/kaizen/app/settings/SettingsScreen.kt

@@ -22,13 +22,6 @@ import dev.kaizen.app.ui.effect.GlassTiers
 import dev.kaizen.app.ui.effect.KaizenShadows
 import dev.kaizen.app.ui.shape.KaizenShapes
 import androidx.compose.foundation.verticalScroll
-import androidx.compose.material.icons.Icons
-import androidx.compose.material.icons.automirrored.rounded.ArrowBack
-import androidx.compose.material.icons.rounded.AutoAwesome
-import androidx.compose.material.icons.rounded.Language
-import androidx.compose.material.icons.rounded.Palette
-import androidx.compose.material.icons.rounded.Person
-import androidx.compose.material.icons.rounded.Settings
 import androidx.compose.material3.Icon
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Text
@@ -47,6 +40,7 @@ import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import androidx.compose.ui.platform.LocalContext
 import dev.kaizen.app.chat.MeshBackground
+import dev.kaizen.app.ui.icon.KaizenIcons
 
 /**
  * Premium, fully responsive, glassmorphic Settings Screen.
@@ -95,7 +89,7 @@ fun SettingsScreen(
                     modifier = Modifier.size(44.dp).clickable { onBack() },
                 ) {
                     Box(Modifier.fillMaxSize(), contentAlignment = Alignment.Center) {
-                        Icon(Icons.AutoMirrored.Rounded.ArrowBack, stringResource(R.string.settings_back), tint = cs.onBackground, modifier = Modifier.size(20.dp))
+                        Icon(KaizenIcons.ArrowLeft, stringResource(R.string.settings_back), tint = cs.onBackground, modifier = Modifier.size(20.dp))
                     }
                 }
                 
@@ -107,7 +101,7 @@ fun SettingsScreen(
             Text(stringResource(R.string.settings_section_appearance), color = cs.onSurfaceVariant.copy(alpha = 0.6f), fontSize = 12.sp, fontWeight = FontWeight.Bold, modifier = Modifier.padding(start = 8.dp, bottom = 8.dp))
 
             SettingsCard(modifier = Modifier.padding(bottom = 24.dp)) {
-                SettingsOptionRow(title = stringResource(R.string.settings_accent_title), description = stringResource(R.string.settings_accent_desc), icon = Icons.Rounded.Palette) {
+                SettingsOptionRow(title = stringResource(R.string.settings_accent_title), description = stringResource(R.string.settings_accent_desc), icon = KaizenIcons.Palette) {
                     Row(horizontalArrangement = Arrangement.spacedBy(10.dp), verticalAlignment = Alignment.CenterVertically) {
                         KaizenThemeId.entries.forEach { theme ->
                             ThemeOptionPill(themeId = theme, selected = selectedTheme == theme, onClick = { viewModel.selectTheme(theme) })
@@ -115,7 +109,7 @@ fun SettingsScreen(
                     }
                 }
                 Spacer(Modifier.height(12.dp))
-                SettingsOptionRow(title = stringResource(R.string.settings_appearance_title), description = stringResource(R.string.settings_appearance_desc), icon = Icons.Rounded.Settings) {
+                SettingsOptionRow(title = stringResource(R.string.settings_appearance_title), description = stringResource(R.string.settings_appearance_desc), icon = KaizenIcons.Settings) {
                     Row(horizontalArrangement = Arrangement.spacedBy(6.dp), verticalAlignment = Alignment.CenterVertically) {
                         AppAppearance.entries.forEach { mode ->
                             val label = when (mode) {
@@ -128,7 +122,7 @@ fun SettingsScreen(
                     }
                 }
                 Spacer(Modifier.height(12.dp))
-                SettingsOptionRow(title = stringResource(R.string.settings_language_title), description = stringResource(R.string.settings_language_desc), icon = Icons.Rounded.Language) {
+                SettingsOptionRow(title = stringResource(R.string.settings_language_title), description = stringResource(R.string.settings_language_desc), icon = KaizenIcons.Globe) {
                     Row(horizontalArrangement = Arrangement.spacedBy(6.dp), verticalAlignment = Alignment.CenterVertically) {
                         listOf("system" to R.string.settings_language_system, "de" to R.string.settings_language_de, "en" to R.string.settings_language_en).forEach { (code, labelRes) ->
                             val ctx = LocalContext.current
@@ -141,17 +135,17 @@ fun SettingsScreen(
             Text(stringResource(R.string.settings_section_profile), color = cs.onSurfaceVariant.copy(alpha = 0.6f), fontSize = 12.sp, fontWeight = FontWeight.Bold, modifier = Modifier.padding(start = 8.dp, bottom = 8.dp))
 
             SettingsCard(modifier = Modifier.padding(bottom = 24.dp)) {
-                SettingsOptionRow(title = stringResource(R.string.settings_name_title), description = stringResource(R.string.settings_name_desc), icon = Icons.Rounded.Person) {
+                SettingsOptionRow(title = stringResource(R.string.settings_name_title), description = stringResource(R.string.settings_name_desc), icon = KaizenIcons.User) {
                     SettingsInputCapsule(value = userName, onValueChange = { viewModel.updateUserName(it) })
                 }
                 Spacer(Modifier.height(12.dp))
-                SettingsOptionRow(title = stringResource(R.string.settings_email_title), description = userEmail, icon = Icons.Rounded.Settings)
+                SettingsOptionRow(title = stringResource(R.string.settings_email_title), description = userEmail, icon = KaizenIcons.Settings)
             }
 
             Text(stringResource(R.string.settings_section_ai), color = cs.onSurfaceVariant.copy(alpha = 0.6f), fontSize = 12.sp, fontWeight = FontWeight.Bold, modifier = Modifier.padding(start = 8.dp, bottom = 8.dp))
 
             SettingsCard(modifier = Modifier.padding(bottom = 24.dp)) {
-                SettingsOptionRow(title = stringResource(R.string.settings_ai_title), description = "", icon = Icons.Rounded.AutoAwesome)
+                SettingsOptionRow(title = stringResource(R.string.settings_ai_title), description = "", icon = KaizenIcons.Sparkles)
             }
 
             SecuritySection(viewModel = viewModel, config = config)

app/src/main/java/dev/kaizen/app/ui/icon/KaizenIcons.kt

@@ -0,0 +1,98 @@
+package dev.kaizen.app.ui.icon
+
+import androidx.compose.ui.graphics.vector.ImageVector
+import com.composables.icons.lucide.*
+
+/**
+ * Central icon registry for the entire app. Every UI component references icons
+ * through this object — never directly from Material, Lucide, or any other
+ * library. This gives us:
+ *
+ * 1. **One-line swap**: change the backing icon here, every usage updates
+ * 2. **Library independence**: migrate from Lucide to custom SVGs gradually
+ * 3. **Semantic naming**: `KaizenIcons.Send` not `Icons.Rounded.Send`
+ * 4. **Brand layer**: the [Custom] section holds hand-drawn Kaizen originals
+ *    that override the base library for brand-critical touchpoints
+ *
+ * Convention: group by function, alphabetize within groups.
+ * When adding a custom icon, keep the Lucide fallback as a comment.
+ */
+object KaizenIcons {
+
+    // ── Navigation ──────────────────────────────────────────────────────────
+    val ArrowLeft: ImageVector get()     = Lucide.ArrowLeft
+    val ChevronDown: ImageVector get()   = Lucide.ChevronDown
+    val ChevronUp: ImageVector get()     = Lucide.ChevronUp
+    val Menu: ImageVector get()          = Lucide.Menu
+    val MoreVertical: ImageVector get()  = Lucide.EllipsisVertical
+    val Settings: ImageVector get()      = Lucide.Settings
+    val X: ImageVector get()             = Lucide.X
+
+    // ── Chat ────────────────────────────────────────────────────────────────
+    val Mic: ImageVector get()           = Lucide.Mic
+    val Paperclip: ImageVector get()     = Lucide.Paperclip
+    val Plus: ImageVector get()          = Lucide.Plus
+    val Send: ImageVector get()          = Lucide.SendHorizontal
+    val Sparkles: ImageVector get()      = Lucide.Sparkles
+    val Square: ImageVector get()        = Lucide.Square
+    val Zap: ImageVector get()           = Lucide.Zap
+
+    // ── Modes ───────────────────────────────────────────────────────────────
+    val Brain: ImageVector get()         = Lucide.Brain
+    val CircleDot: ImageVector get()     = Lucide.CircleDot
+    val Globe: ImageVector get()         = Lucide.Globe
+    val Image: ImageVector get()         = Lucide.Image
+    val Music: ImageVector get()         = Lucide.Music
+    val SlidersHorizontal: ImageVector get() = Lucide.SlidersHorizontal
+    val Video: ImageVector get()         = Lucide.Video
+
+    // ── Conversation management ─────────────────────────────────────────────
+    val Check: ImageVector get()         = Lucide.Check
+    val Copy: ImageVector get()          = Lucide.Copy
+    val Lock: ImageVector get()          = Lucide.Lock
+    val LockOpen: ImageVector get()      = Lucide.LockOpen
+    val Pencil: ImageVector get()        = Lucide.Pencil
+    val Pin: ImageVector get()           = Lucide.Pin
+    val PinOff: ImageVector get()        = Lucide.PinOff
+    val RefreshCw: ImageVector get()     = Lucide.RefreshCw
+    val Star: ImageVector get()          = Lucide.Star
+    val StarOff: ImageVector get()       = Lucide.StarOff
+    val Trash: ImageVector get()         = Lucide.Trash2
+
+    // ── Files & media ───────────────────────────────────────────────────────
+    val Camera: ImageVector get()        = Lucide.Camera
+    val Code: ImageVector get()          = Lucide.Code
+    val File: ImageVector get()          = Lucide.File
+    val FileAudio: ImageVector get()     = Lucide.FileAudio
+    val FileText: ImageVector get()      = Lucide.FileText
+    val FileVideo: ImageVector get()     = Lucide.FileVideo
+    val FileImage: ImageVector get()     = Lucide.FileImage
+
+    // ── Search & reasoning ──────────────────────────────────────────────────
+    val Search: ImageVector get()        = Lucide.Search
+    val ExternalLink: ImageVector get()  = Lucide.ExternalLink
+    val Wrench: ImageVector get()        = Lucide.Wrench
+    val AlertCircle: ImageVector get()   = Lucide.CircleAlert
+
+    // ── Settings ────────────────────────────────────────────────────────────
+    val Fingerprint: ImageVector get()   = Lucide.Fingerprint
+    val Key: ImageVector get()           = Lucide.Key
+    val Languages: ImageVector get()     = Lucide.Languages
+    val LogOut: ImageVector get()        = Lucide.LogOut
+    val Monitor: ImageVector get()       = Lucide.Monitor
+    val Moon: ImageVector get()          = Lucide.Moon
+    val Palette: ImageVector get()       = Lucide.Palette
+    val Smartphone: ImageVector get()    = Lucide.Smartphone
+    val Sun: ImageVector get()           = Lucide.Sun
+    val User: ImageVector get()          = Lucide.User
+
+    // ── Scroll ──────────────────────────────────────────────────────────────
+    val ArrowDown: ImageVector get()     = Lucide.ArrowDown
+    val ArrowUp: ImageVector get()       = Lucide.ArrowUp
+
+    // ── Custom (brand overrides) ────────────────────────────────────────────
+    // Add hand-drawn SVGs here as ImageVector literals when ready.
+    // Example:
+    //   val Send: ImageVector get() = KaizenCustomIcons.Send
+    // The Lucide fallback above is then removed.
+}

gradle/libs.versions.toml

@@ -14,6 +14,7 @@ kotlinxSerialization = "1.7.3"
 securityCrypto = "1.1.0-alpha06"
 room = "2.8.4"
 biometric = "1.4.0-alpha02"
+composeIcons = "1.0.0"
 
 [libraries]
 androidx-core-ktx = { group = "androidx.core", name = "core-ktx", version.ref = "coreKtx" }
@@ -23,6 +24,7 @@ androidx-security-crypto = { group = "androidx.security", name = "security-crypt
 androidx-room-runtime = { group = "androidx.room", name = "room-runtime", version.ref = "room" }
 androidx-room-compiler = { group = "androidx.room", name = "room-compiler", version.ref = "room" }
 androidx-biometric = { group = "androidx.biometric", name = "biometric", version.ref = "biometric" }
+compose-icons-lucide = { group = "com.composables", name = "icons-lucide-android", version.ref = "composeIcons" }
 junit = { group = "junit", name = "junit", version.ref = "junit" }
 androidx-junit = { group = "androidx.test.ext", name = "junit", version.ref = "junitVersion" }
 androidx-espresso-core = { group = "androidx.test.espresso", name = "espresso-core", version.ref = "espressoCore" }