feat(theme): выбор цветовой темы (8 палитр) в настройках

8 тёмных палитр (Лес/Океан/Закат/Аметист/Неон/Янтарь/Лёд/Роза) в Palettes.kt.
RadiolaColors теперь несёт все токены + градиент; RadiolaTheme(palette) строит из
неё и RadiolaColors, и Material ColorScheme — всё приложение берёт цвета через
RadiolaTheme.colors, поэтому смена палитры перекрашивает мгновенно. Бренд-марка
(AppMark/Wordmark) тоже следует теме. Выбор в DataStore (theme_palette, дефолт
forest), читается в MainActivity и подаётся в тему. Секция «ТЕМА ОФОРМЛЕНИЯ» в
настройках — горизонтальный ряд свотчей с превью (фон+акцент+градиент).

app/src/main/java/com/radiola/MainActivity.kt

@@ -46,6 +46,9 @@ class MainActivity : ComponentActivity() {
     @Inject
     lateinit var tokenDataStore: TokenDataStore
 
+    @Inject
+    lateinit var settingsRepository: com.radiola.domain.repository.SettingsRepository
+
     override fun onCreate(savedInstanceState: Bundle?) {
         installSplashScreen()
         super.onCreate(savedInstanceState)
@@ -55,7 +58,9 @@ class MainActivity : ComponentActivity() {
         }
         enableEdgeToEdge()
         setContent {
-            RadiolaTheme {
+            // Выбранная цветовая тема (мгновенно перекрашивает всё приложение).
+            val paletteId by settingsRepository.getThemePalette().collectAsState(initial = "forest")
+            RadiolaTheme(palette = com.radiola.ui.theme.ThemePalette.fromId(paletteId)) {
                 val navController = rememberNavController()
                 val sheetState = rememberModalBottomSheetState(skipPartiallyExpanded = true)
                 var showPlayer by remember { mutableStateOf(false) }

app/src/main/java/com/radiola/data/repository/SettingsRepositoryImpl.kt

@@ -32,6 +32,7 @@ class SettingsRepositoryImpl @Inject constructor(
         private val PREFERRED_BITRATE = intPreferencesKey("preferred_bitrate")
         private val COUNTRY_CODE = stringPreferencesKey("country_code")
         private val VISUALIZER_STYLE = stringPreferencesKey("visualizer_style")
+        private val THEME_PALETTE = stringPreferencesKey("theme_palette")
     }
 
     override fun getLastStationId(): Flow<Int?> = dataStore.data.map { it[LAST_STATION_ID] }
@@ -61,4 +62,7 @@ class SettingsRepositoryImpl @Inject constructor(
 
     override fun getVisualizerStyle(): Flow<String> = dataStore.data.map { it[VISUALIZER_STYLE] ?: "bars_center" }
     override suspend fun setVisualizerStyle(style: String) { dataStore.edit { it[VISUALIZER_STYLE] = style } }
+
+    override fun getThemePalette(): Flow<String> = dataStore.data.map { it[THEME_PALETTE] ?: "forest" }
+    override suspend fun setThemePalette(id: String) { dataStore.edit { it[THEME_PALETTE] = id } }
 }

app/src/main/java/com/radiola/domain/repository/SettingsRepository.kt

@@ -23,4 +23,7 @@ interface SettingsRepository {
     // Стиль визуализатора звука в плеере (ключ VisualizerStyle).
     fun getVisualizerStyle(): Flow<String>
     suspend fun setVisualizerStyle(style: String)
+    // Цветовая тема приложения (id ThemePalette, напр. "forest"). По умолчанию "forest".
+    fun getThemePalette(): Flow<String>
+    suspend fun setThemePalette(id: String)
 }

app/src/main/java/com/radiola/ui/settings/SettingsScreen.kt

@@ -5,7 +5,9 @@ import androidx.compose.animation.core.tween
 import androidx.compose.foundation.background
 import androidx.compose.foundation.border
 import androidx.compose.foundation.clickable
+import androidx.compose.foundation.horizontalScroll
 import androidx.compose.foundation.layout.*
+import androidx.compose.foundation.rememberScrollState
 import androidx.compose.foundation.lazy.LazyColumn
 import androidx.compose.foundation.lazy.items
 import androidx.compose.foundation.shape.CircleShape
@@ -32,6 +34,7 @@ import com.radiola.domain.model.DeeplinkService
 import com.radiola.domain.model.StationTestStatus
 import com.radiola.ui.theme.Motion
 import com.radiola.ui.theme.RadiolaTheme
+import com.radiola.ui.theme.ThemePalette
 
 @OptIn(ExperimentalMaterial3Api::class)
 @Composable
@@ -45,6 +48,7 @@ fun SettingsScreen(
     val enabledServices by viewModel.enabledServices.collectAsState()
     val equalizerPreset by viewModel.equalizerPreset.collectAsState()
     val visualizerStyle by viewModel.visualizerStyle.collectAsState()
+    val themePalette by viewModel.themePalette.collectAsState()
     val isRecordingEnabled by viewModel.isRecordingEnabled.collectAsState()
     val preferredBitrate by viewModel.preferredBitrate.collectAsState()
     val isTesting by viewModel.isTesting.collectAsState()
@@ -76,6 +80,26 @@ fun SettingsScreen(
             )
         }
 
+        // --- Тема оформления ---
+        item {
+            SectionLabel("ТЕМА ОФОРМЛЕНИЯ")
+            Spacer(Modifier.height(8.dp))
+            Row(
+                modifier = Modifier
+                    .fillMaxWidth()
+                    .horizontalScroll(rememberScrollState()),
+                horizontalArrangement = Arrangement.spacedBy(12.dp)
+            ) {
+                ThemePalette.entries.forEach { palette ->
+                    ThemeSwatch(
+                        palette = palette,
+                        selected = themePalette == palette.id,
+                        onClick = { viewModel.setThemePalette(palette.id) }
+                    )
+                }
+            }
+        }
+
         // --- Профиль ---
         item {
             SectionLabel("ПРОФИЛЬ")
@@ -594,6 +618,61 @@ fun SettingsScreen(
     }
 }
 
+/**
+ * Превью цветовой темы: квадрат с фоном палитры, акцентным кружком и брендовым
+ * градиентом снизу. Выбранная — с акцентной рамкой и жирной подписью.
+ */
+@Composable
+private fun ThemeSwatch(
+    palette: ThemePalette,
+    selected: Boolean,
+    onClick: () -> Unit
+) {
+    val p = palette.colors
+    val outer = RadiolaTheme.colors
+    Column(
+        modifier = Modifier
+            .width(72.dp)
+            .clip(RoundedCornerShape(18.dp))
+            .clickable(onClick = onClick),
+        horizontalAlignment = Alignment.CenterHorizontally,
+        verticalArrangement = Arrangement.spacedBy(6.dp)
+    ) {
+        Box(
+            modifier = Modifier
+                .size(64.dp)
+                .clip(RoundedCornerShape(18.dp))
+                .background(p.bgBase)
+                .border(
+                    width = if (selected) 2.dp else 1.dp,
+                    color = if (selected) outer.accent else outer.border,
+                    shape = RoundedCornerShape(18.dp)
+                )
+        ) {
+            Box(
+                modifier = Modifier
+                    .align(Alignment.Center)
+                    .size(26.dp)
+                    .clip(CircleShape)
+                    .background(p.accent)
+            )
+            Box(
+                modifier = Modifier
+                    .align(Alignment.BottomCenter)
+                    .fillMaxWidth()
+                    .height(10.dp)
+                    .background(p.brandGradient)
+            )
+        }
+        Text(
+            text = palette.title,
+            style = MaterialTheme.typography.labelMedium,
+            color = if (selected) outer.accent else outer.textSecondary,
+            fontWeight = if (selected) FontWeight.SemiBold else FontWeight.Normal
+        )
+    }
+}
+
 /** Подпись секции: заглавные буквы, textMuted, labelSmall. */
 @Composable
 private fun SectionLabel(text: String) {

app/src/main/java/com/radiola/ui/settings/SettingsViewModel.kt

@@ -35,6 +35,9 @@ class SettingsViewModel @Inject constructor(
     val visualizerStyle: StateFlow<String> = settingsRepository.getVisualizerStyle()
         .stateIn(viewModelScope, SharingStarted.WhileSubscribed(5000), "bars_center")
 
+    val themePalette: StateFlow<String> = settingsRepository.getThemePalette()
+        .stateIn(viewModelScope, SharingStarted.WhileSubscribed(5000), "forest")
+
     val isRecordingEnabled: StateFlow<Boolean> = settingsRepository.isRecordingEnabled()
         .stateIn(viewModelScope, SharingStarted.WhileSubscribed(5000), false)
 
@@ -84,6 +87,10 @@ class SettingsViewModel @Inject constructor(
         viewModelScope.launch { settingsRepository.setVisualizerStyle(style) }
     }
 
+    fun setThemePalette(id: String) {
+        viewModelScope.launch { settingsRepository.setThemePalette(id) }
+    }
+
     fun setRecordingEnabled(enabled: Boolean) {
         viewModelScope.launch { settingsRepository.setRecordingEnabled(enabled) }
     }

app/src/main/java/com/radiola/ui/theme/Brand.kt

@@ -31,16 +31,17 @@ fun AppMark(
     modifier: Modifier = Modifier
 ) {
     val radius = (size.value * 0.29f).dp
+    val colors = RadiolaTheme.colors
     Box(
         modifier = modifier
             .size(size)
             .clip(RoundedCornerShape(radius))
-            .background(brandGradient()),
+            .background(colors.brandGradient),
         contentAlignment = Alignment.Center
     ) {
         Text(
             text = "R",
-            color = BgBase,
+            color = colors.bgBase,
             fontWeight = FontWeight.Black,
             fontSize = (size.value * 0.62f).sp
         )
@@ -55,16 +56,17 @@ fun RadiolaWordmark(
     fontSize: Int = 26,
     modifier: Modifier = Modifier
 ) {
+    val colors = RadiolaTheme.colors
     Row(modifier = modifier, verticalAlignment = Alignment.CenterVertically) {
         Text(
             text = "radi",
-            color = TextPrimary,
+            color = colors.textPrimary,
             fontWeight = FontWeight.Bold,
             fontSize = fontSize.sp
         )
         Text(
             text = "OLA",
-            color = Accent,
+            color = colors.accent,
             fontWeight = FontWeight.Bold,
             fontSize = fontSize.sp
         )

app/src/main/java/com/radiola/ui/theme/Palettes.kt

@@ -0,0 +1,119 @@
+package com.radiola.ui.theme
+
+import androidx.compose.ui.graphics.Color
+
+/**
+ * Цветовые темы приложения. radiOLA всегда тёмная — палитры различаются оттенком
+ * фона, акцентом и брендовым градиентом. Выбор хранится по [id] в настройках
+ * (`SettingsRepository.getThemePalette`), применяется в `RadiolaTheme`.
+ *
+ * Все цвета берутся компонентами через `RadiolaTheme.colors` / `MaterialTheme.colorScheme`,
+ * поэтому смена палитры перекрашивает приложение мгновенно.
+ */
+enum class ThemePalette(
+    val id: String,
+    val title: String,
+    val colors: RadiolaColors,
+) {
+    // Фирменная зелёная (по умолчанию) — берёт значения из Color.kt.
+    FOREST(
+        "forest", "Лес",
+        RadiolaColors(
+            bgBase = BgBase, surface = BgSurface, surface2 = BgSurface2, elevated = BgElevated,
+            accent = Accent, accentDim = AccentDim,
+            textPrimary = TextPrimary, textSecondary = TextSecondary, textMuted = TextMuted,
+            border = BorderColor, live = LiveRed,
+            gradientStart = BrandGradientStart, gradientEnd = BrandGradientEnd,
+        ),
+    ),
+
+    // Глубокий сине-бирюзовый, акцент циан.
+    OCEAN(
+        "ocean", "Океан",
+        RadiolaColors(
+            bgBase = Color(0xFF0A0F1A), surface = Color(0xFF121A2A), surface2 = Color(0xFF1A2438), elevated = Color(0xFF222F47),
+            accent = Color(0xFF4FD6E0), accentDim = Color(0xFF2E8E9A),
+            textPrimary = Color(0xFFFFFFFF), textSecondary = Color(0xFF8F9DB3), textMuted = Color(0xFF5C6A82),
+            border = Color(0xFF26324A), live = Color(0xFFFF5C7A),
+            gradientStart = Color(0xFF5BE1F2), gradientEnd = Color(0xFF3A7BD5),
+        ),
+    ),
+
+    // Тёплый тёмный, коралл/оранжевый.
+    SUNSET(
+        "sunset", "Закат",
+        RadiolaColors(
+            bgBase = Color(0xFF1A0F0C), surface = Color(0xFF261712), surface2 = Color(0xFF33201A), elevated = Color(0xFF422A22),
+            accent = Color(0xFFFF8A5B), accentDim = Color(0xFFC55E3A),
+            textPrimary = Color(0xFFFFFFFF), textSecondary = Color(0xFFB39A8F), textMuted = Color(0xFF82675C),
+            border = Color(0xFF4A322A), live = Color(0xFFFF4D6D),
+            gradientStart = Color(0xFFFFB36B), gradientEnd = Color(0xFFFF6B5B),
+        ),
+    ),
+
+    // Тёмно-фиолетовый, акцент сирень.
+    AMETHYST(
+        "amethyst", "Аметист",
+        RadiolaColors(
+            bgBase = Color(0xFF120E1A), surface = Color(0xFF1C1528), surface2 = Color(0xFF271D38), elevated = Color(0xFF332747),
+            accent = Color(0xFFB388FF), accentDim = Color(0xFF7E5BC5),
+            textPrimary = Color(0xFFFFFFFF), textSecondary = Color(0xFFA095B3), textMuted = Color(0xFF6E5C82),
+            border = Color(0xFF372A4A), live = Color(0xFFFF5C9D),
+            gradientStart = Color(0xFFC9A6FF), gradientEnd = Color(0xFF8B5BD5),
+        ),
+    ),
+
+    // Почти чёрный, неоновый розово-малиновый (киберпанк).
+    NEON(
+        "neon", "Неон",
+        RadiolaColors(
+            bgBase = Color(0xFF0D0A12), surface = Color(0xFF16111E), surface2 = Color(0xFF1F1729), elevated = Color(0xFF2A1F38),
+            accent = Color(0xFFFF4D9D), accentDim = Color(0xFFC53A75),
+            textPrimary = Color(0xFFFFFFFF), textSecondary = Color(0xFFB095A6), textMuted = Color(0xFF7C5C6E),
+            border = Color(0xFF3A2A33), live = Color(0xFFFF3D5C),
+            gradientStart = Color(0xFFFF5BD0), gradientEnd = Color(0xFFFF4D7A),
+        ),
+    ),
+
+    // Тёплый уголь, золотой акцент.
+    AMBER(
+        "amber", "Янтарь",
+        RadiolaColors(
+            bgBase = Color(0xFF14110A), surface = Color(0xFF201A10), surface2 = Color(0xFF2C2418), elevated = Color(0xFF392F20),
+            accent = Color(0xFFFFC247), accentDim = Color(0xFFC5902E),
+            textPrimary = Color(0xFFFFFFFF), textSecondary = Color(0xFFB3A88F), textMuted = Color(0xFF82765C),
+            border = Color(0xFF4A3F2A), live = Color(0xFFFF5C52),
+            gradientStart = Color(0xFFFFD66B), gradientEnd = Color(0xFFFF9F45),
+        ),
+    ),
+
+    // Холодный графит, ледяной голубой.
+    ICE(
+        "ice", "Лёд",
+        RadiolaColors(
+            bgBase = Color(0xFF0C1014), surface = Color(0xFF161C22), surface2 = Color(0xFF202830), elevated = Color(0xFF2C3640),
+            accent = Color(0xFF7FB3FF), accentDim = Color(0xFF4F7CC5),
+            textPrimary = Color(0xFFFFFFFF), textSecondary = Color(0xFF95A3B3), textMuted = Color(0xFF5C6A7C),
+            border = Color(0xFF2A3540), live = Color(0xFFFF6B6B),
+            gradientStart = Color(0xFFA6D0FF), gradientEnd = Color(0xFF6B9FFF),
+        ),
+    ),
+
+    // Тёмная мальва, розовый акцент.
+    ROSE(
+        "rose", "Роза",
+        RadiolaColors(
+            bgBase = Color(0xFF160E12), surface = Color(0xFF22151B), surface2 = Color(0xFF2E1E26), elevated = Color(0xFF3C2A33),
+            accent = Color(0xFFFF7EA8), accentDim = Color(0xFFC5547A),
+            textPrimary = Color(0xFFFFFFFF), textSecondary = Color(0xFFB395A0), textMuted = Color(0xFF825C6A),
+            border = Color(0xFF4A2A38), live = Color(0xFFFF4D6D),
+            gradientStart = Color(0xFFFFA6C2), gradientEnd = Color(0xFFFF6B9F),
+        ),
+    ),
+    ;
+
+    companion object {
+        /** Палитра по сохранённому id (фолбэк — «Лес»). */
+        fun fromId(id: String?): ThemePalette = entries.firstOrNull { it.id == id } ?: FOREST
+    }
+}

app/src/main/java/com/radiola/ui/theme/Theme.kt

@@ -13,54 +13,60 @@ import androidx.compose.ui.graphics.Color
  * Доступ через MaterialTheme-стиль: `RadiolaTheme.colors`.
  */
 data class RadiolaColors(
-    val bgBase: Color = BgBase,
+    val bgBase: Color,
-    val surface: Color = BgSurface,
+    val surface: Color,
-    val surface2: Color = BgSurface2,
+    val surface2: Color,
-    val elevated: Color = BgElevated,
+    val elevated: Color,
-    val accent: Color = Accent,
+    val accent: Color,
-    val accentDim: Color = AccentDim,
+    val accentDim: Color,
-    val textPrimary: Color = TextPrimary,
+    val textPrimary: Color,
-    val textSecondary: Color = TextSecondary,
+    val textSecondary: Color,
-    val textMuted: Color = TextMuted,
+    val textMuted: Color,
-    val border: Color = BorderColor,
+    val border: Color,
-    val live: Color = LiveRed,
+    val live: Color,
+    val gradientStart: Color,
+    val gradientEnd: Color,
 ) {
     val brandGradient: Brush
-        get() = Brush.linearGradient(listOf(BrandGradientStart, BrandGradientEnd))
+        get() = Brush.linearGradient(listOf(gradientStart, gradientEnd))
 }
 
-val LocalRadiolaColors = staticCompositionLocalOf { RadiolaColors() }
+// По умолчанию — фирменная палитра «Лес».
+val LocalRadiolaColors = staticCompositionLocalOf { ThemePalette.FOREST.colors }
 
 object RadiolaTheme {
     val colors: RadiolaColors
         @Composable get() = LocalRadiolaColors.current
 }
 
-private val DarkColorScheme = darkColorScheme(
+// Material ColorScheme из наших токенов — чтобы Material-компоненты тоже следовали палитре.
-    primary = Accent,
+private fun schemeOf(c: RadiolaColors) = darkColorScheme(
-    onPrimary = BgBase,
+    primary = c.accent,
-    secondary = AccentDim,
+    onPrimary = c.bgBase,
-    onSecondary = BgBase,
+    secondary = c.accentDim,
-    background = BgBase,
+    onSecondary = c.bgBase,
-    onBackground = TextPrimary,
+    background = c.bgBase,
-    surface = BgSurface,
+    onBackground = c.textPrimary,
-    onSurface = TextPrimary,
+    surface = c.surface,
-    surfaceVariant = BgSurface2,
+    onSurface = c.textPrimary,
-    onSurfaceVariant = TextSecondary,
+    surfaceVariant = c.surface2,
-    outline = BorderColor,
+    onSurfaceVariant = c.textSecondary,
-    outlineVariant = BorderColor,
+    outline = c.border,
-    error = LiveRed,
+    outlineVariant = c.border,
-    onError = BgBase,
+    error = c.live,
+    onError = c.bgBase,
 )
 
 @Composable
 fun RadiolaTheme(
+    palette: ThemePalette = ThemePalette.FOREST,
     content: @Composable () -> Unit
 ) {
-    // Приложение всегда в тёмной фирменной теме.
+    // Приложение всегда тёмное; палитра выбирается пользователем.
-    CompositionLocalProvider(LocalRadiolaColors provides RadiolaColors()) {
+    val colors = palette.colors
+    CompositionLocalProvider(LocalRadiolaColors provides colors) {
         MaterialTheme(
-            colorScheme = DarkColorScheme,
+            colorScheme = schemeOf(colors),
             typography = Typography,
             shapes = RadiolaShapes,
             content = content