Add Catppuccin theme (#2117)

Mocha for dark and Latte for light, mauve accent

app/src/main/java/eu/kanade/domain/ui/model/AppTheme.kt

@@ -6,6 +6,7 @@ import tachiyomi.i18n.MR
 enum class AppTheme(val titleRes: StringResource?) {
     DEFAULT(MR.strings.label_default),
     MONET(MR.strings.theme_monet),
+    CATPPUCCIN(MR.strings.theme_catppuccin),
     GREEN_APPLE(MR.strings.theme_greenapple),
     LAVENDER(MR.strings.theme_lavender),
     MIDNIGHT_DUSK(MR.strings.theme_midnightdusk),

app/src/main/java/eu/kanade/presentation/theme/TachiyomiTheme.kt

@@ -9,6 +9,7 @@ import androidx.compose.ui.platform.LocalContext
 import eu.kanade.domain.ui.UiPreferences
 import eu.kanade.domain.ui.model.AppTheme
 import eu.kanade.presentation.theme.colorscheme.BaseColorScheme
+import eu.kanade.presentation.theme.colorscheme.CatppuccinColorScheme
 import eu.kanade.presentation.theme.colorscheme.GreenAppleColorScheme
 import eu.kanade.presentation.theme.colorscheme.LavenderColorScheme
 import eu.kanade.presentation.theme.colorscheme.MidnightDuskColorScheme
@@ -77,6 +78,7 @@ private fun getThemeColorScheme(
 
 private val colorSchemes: Map<AppTheme, BaseColorScheme> = mapOf(
     AppTheme.DEFAULT to TachiyomiColorScheme,
+    AppTheme.CATPPUCCIN to CatppuccinColorScheme,
     AppTheme.GREEN_APPLE to GreenAppleColorScheme,
     AppTheme.LAVENDER to LavenderColorScheme,
     AppTheme.MIDNIGHT_DUSK to MidnightDuskColorScheme,

app/src/main/java/eu/kanade/presentation/theme/colorscheme/CatppuccinColorScheme.kt

@@ -0,0 +1,103 @@
+package eu.kanade.presentation.theme.colorscheme
+
+import androidx.compose.material3.darkColorScheme
+import androidx.compose.material3.lightColorScheme
+import androidx.compose.ui.graphics.Color
+
+/**
+ * Colors for Catppuccin theme
+ * MIT License
+ * Copyright (c) 2021 Catppuccin
+ * https://catppuccin.com
+ * M3 colors generated by Material Theme Builder (https://goo.gle/material-theme-builder-web)
+ *
+ * Key colors (dark):
+ * Primary #CBA6F4
+ * Secondary #CBA6F4
+ * Tertiary #CBA6F4
+ * Neutral #181825
+
+ * Key colors (light):
+ * Primary #8839EF
+ * Secondary #8839EF
+ * Tertiary #8839EF
+ * Neutral #E6E9EF
+ */
+internal object CatppuccinColorScheme : BaseColorScheme() {
+
+    override val darkScheme = darkColorScheme(
+        primary = Color(0xFFCBA6F7),
+        onPrimary = Color(0xFF11111B),
+        primaryContainer = Color(0xFFCBA6F7),
+        onPrimaryContainer = Color(0xFF11111B),
+        secondary = Color(0xFFCBA6F7), // Unread badge
+        onSecondary = Color(0xFF11111B), // Unread badge text
+        secondaryContainer = Color(0xFF313244), // Navigation bar selector pill & progress indicator (remaining)
+        onSecondaryContainer = Color(0xFFCBA6F7), // Navigation bar selector icon
+        tertiary = Color(0xFFCBA6F7), // Volume and brightness bars, Downloaded badge
+        onTertiary = Color(0xFF11111B), // Downloaded badge text
+        tertiaryContainer = Color(0xFF1E1E2E),
+        onTertiaryContainer = Color(0xFFCDD6F4),
+        error = Color(0xFFF38BA8),
+        onError = Color(0xFF11111B),
+        errorContainer = Color(0xFFFF0558),
+        onErrorContainer = Color(0xFFEF9FB4),
+        background = Color(0xFF181825),
+        onBackground = Color(0xFFCDD6F4),
+        surface = Color(0xFF181825),
+        onSurface = Color(0xFFCDD6F4),
+        surfaceVariant = Color(0xFF1E1E2E), // Navigation bar background (ThemePrefWidget)
+        onSurfaceVariant = Color(0xFFCDD6F4), // Button (unselected)
+        outline = Color(0xFFCBA6F7),
+        outlineVariant = Color(0xFF585B70), // Outlines for buttons
+        scrim = Color(0xFF11111B),
+        inverseSurface = Color(0xFFEFF1F5), // Snackbar or whatever they called
+        inverseOnSurface = Color(0xFF4C4F69), // Snackbar text
+        inversePrimary = Color(0xFF8839EF), // Snackbar accent
+        surfaceDim = Color(0xFF181825),
+        surfaceBright = Color(0xFF313244),
+        surfaceContainerLowest = Color(0xFF181825),
+        surfaceContainerLow = Color(0xFF1E1E2E), // Repo cards
+        surfaceContainer = Color(0xFF1E1E2E),
+        surfaceContainerHigh = Color(0xFF1E1E2E), // Filter menu
+        surfaceContainerHighest = Color(0xFF313244), // Untoggleg button bg
+    )
+
+    override val lightScheme = lightColorScheme(
+        primary = Color(0xFF8839EF),
+        onPrimary = Color(0xFFDCE0E8),
+        primaryContainer = Color(0xFF8839EF),
+        onPrimaryContainer = Color(0xFFDCE0E8),
+        secondary = Color(0xFF8839EF), // Unread badge
+        onSecondary = Color(0xFFDCE0E8), // Unread badge text
+        secondaryContainer = Color(0xFFCDD0DA), // Navigation bar selector pill & progress indicator (remaining)
+        onSecondaryContainer = Color(0xFF8839EF), // Navigation bar selector icon
+        tertiary = Color(0xFF8839EF), // Volume and brightness bars, Downloaded badge
+        onTertiary = Color(0xFFDCE0E8), // Downloaded badge text
+        tertiaryContainer = Color(0xFFEFF1F5),
+        onTertiaryContainer = Color(0xFF4C4F69),
+        error = Color(0xFFD20F39),
+        onError = Color(0xFFDCE0E8),
+        errorContainer = Color(0xFF68001C),
+        onErrorContainer = Color(0xFFD61C41),
+        background = Color(0xFFE6E9EF),
+        onBackground = Color(0xFF4C4F69),
+        surface = Color(0xFFE6E9EF),
+        onSurface = Color(0xFF4C4F69),
+        surfaceVariant = Color(0xFFEFF1F5), // Navigation bar background (ThemePrefWidget)
+        onSurfaceVariant = Color(0xFF4C4F69), // Button (unselected)
+        outline = Color(0xFF8839EF),
+        outlineVariant = Color(0xFFACB0BE), // Outlines for buttons
+        scrim = Color(0xFFDCE0E8),
+        inverseSurface = Color(0xFF1E1E2E), // Snackbar
+        inverseOnSurface = Color(0xFFCDD6F4), // Snackbar text
+        inversePrimary = Color(0xFFCBA6F7), // Snackbar accent
+        surfaceDim = Color(0xFFE6E9EF),
+        surfaceBright = Color(0xFFCDD0DA),
+        surfaceContainerLowest = Color(0xFFE6E9EF),
+        surfaceContainerLow = Color(0xFFEFF1F5), // Repo cards
+        surfaceContainer = Color(0xFFEFF1F5), // Navigation bar background
+        surfaceContainerHigh = Color(0xFFEFF1F5), // Filter menu
+        surfaceContainerHighest = Color(0xFFCDD0DA), // Untoggleg bg
+    )
+}

app/src/main/java/eu/kanade/tachiyomi/ui/base/delegate/ThemingDelegate.kt

@@ -30,6 +30,7 @@ class ThemingDelegateImpl : ThemingDelegate {
 
 private val themeResources: Map<AppTheme, Int> = mapOf(
     AppTheme.MONET to R.style.Theme_Tachiyomi_Monet,
+    AppTheme.CATPPUCCIN to R.style.Theme_Tachiyomi_Catppuccin,
     AppTheme.GREEN_APPLE to R.style.Theme_Tachiyomi_GreenApple,
     AppTheme.LAVENDER to R.style.Theme_Tachiyomi_Lavender,
     AppTheme.MIDNIGHT_DUSK to R.style.Theme_Tachiyomi_MidnightDusk,