Change theme to use custom colors instead of the material ones to allow usage without material dependency

config/detekt/baseline.xml

@@ -167,6 +167,8 @@
     <ID>LongMethod:SrvServiceDiscoveryTest.kt$SrvServiceDiscoveryTest$@Test fun discover_withRequiredServices_shouldCorrectlyPrioritize()</ID>
     <ID>LongMethod:TextBodyBuilderTest.kt$TextBodyBuilderTest.Companion$@JvmStatic @Parameterized.Parameters(name = "{index}: {0}") fun data(): Collection&lt;TestData&gt;</ID>
     <ID>LongMethod:ThreadMessageOperationsTest.kt$ThreadMessageOperationsTest$@Test fun `merge two existing threads`()</ID>
+    <ID>LongParameterList:Colors.kt$( primary: Color = MaterialColor.deep_purple_200, primaryVariant: Color = MaterialColor.deep_purple_50, secondary: Color = MaterialColor.cyan_300, secondaryVariant: Color = MaterialColor.cyan_100, background: Color = MaterialColor.gray_800, surface: Color = MaterialColor.gray_900, error: Color = MaterialColor.red_300, onPrimary: Color = Color.Black, onSecondary: Color = Color.Black, onBackground: Color = Color.White, onSurface: Color = Color.White, onError: Color = Color.Black, )</ID>
+    <ID>LongParameterList:Colors.kt$( primary: Color = MaterialColor.deep_purple_600, primaryVariant: Color = MaterialColor.deep_purple_900, secondary: Color = MaterialColor.cyan_600, secondaryVariant: Color = MaterialColor.cyan_800, background: Color = MaterialColor.gray_200, surface: Color = Color.White, error: Color = MaterialColor.red_600, onPrimary: Color = Color.White, onSecondary: Color = Color.Black, onBackground: Color = Color.Black, onSurface: Color = Color.Black, onError: Color = Color.White, )</ID>
     <ID>LongParameterList:CopyMessageOperations.kt$DatabaseMessagePart$( val id: Long, val type: Int, val root: Long, val parent: Long, val seq: Int, val mimeType: String?, val decodedBodySize: Long?, val displayName: String?, val header: ByteArray?, val encoding: String?, val charset: String?, val dataLocation: Int, val data: ByteArray?, val preamble: ByteArray?, val epilogue: ByteArray?, val boundary: String?, val contentId: String?, val serverExtra: String?, )</ID>
     <ID>LongParameterList:FolderHelpers.kt$( name: String = "irrelevant", type: String = "regular", serverId: String? = null, isLocalOnly: Boolean = true, integrate: Boolean = false, inTopGroup: Boolean = false, displayClass: String = "NO_CLASS", syncClass: String? = "INHERITED", notifyClass: String? = "INHERITED", pushClass: String? = "SECOND_CLASS", lastUpdated: Long = 0L, unreadCount: Int = 0, visibleLimit: Int = 25, status: String? = null, flaggedCount: Int = 0, moreMessages: String = "unknown", )</ID>
     <ID>LongParameterList:ImapSync.kt$ImapSync$( remoteFolder: ImapFolder, backendFolder: BackendFolder, largeMessages: List&lt;ImapMessage&gt;, progress: AtomicInteger, downloadedMessageCount: AtomicInteger, todo: Int, highestKnownUid: Long?, listener: SyncListener, maxDownloadSize: Int, )</ID>

config/detekt/detekt.yml

@@ -729,7 +729,7 @@ style:
 Compose:
   CompositionLocalAllowlist:
     active: true
-    allowedCompositionLocals: [LocalElevations, LocalImages, LocalSizes, LocalSpacings]
+    allowedCompositionLocals: [LocalColors, LocalElevations, LocalImages, LocalSizes, LocalSpacings]
   ContentEmitterReturningValues:
     active: true
     # You can optionally add your own composables here

core/ui/compose/theme/src/main/java/app/k9mail/core/ui/compose/theme/Colors.kt

@@ -0,0 +1,101 @@
+package app.k9mail.core.ui.compose.theme
+
+import androidx.compose.runtime.Immutable
+import androidx.compose.runtime.staticCompositionLocalOf
+import androidx.compose.ui.graphics.Color
+import androidx.compose.material.Colors as MaterialColors
+
+@Immutable
+data class Colors(
+    val primary: Color,
+    val primaryVariant: Color,
+    val secondary: Color,
+    val secondaryVariant: Color,
+    val background: Color,
+    val surface: Color,
+    val error: Color,
+    val onPrimary: Color,
+    val onSecondary: Color,
+    val onBackground: Color,
+    val onSurface: Color,
+    val onError: Color,
+    val isLight: Boolean,
+)
+
+fun lightColors(
+    primary: Color = Color(0xFF6200EE),
+    primaryVariant: Color = Color(0xFF3700B3),
+    secondary: Color = Color(0xFF03DAC6),
+    secondaryVariant: Color = Color(0xFF018786),
+    background: Color = Color.White,
+    surface: Color = Color.White,
+    error: Color = Color(0xFFB00020),
+    onPrimary: Color = Color.White,
+    onSecondary: Color = Color.Black,
+    onBackground: Color = Color.Black,
+    onSurface: Color = Color.Black,
+    onError: Color = Color.White,
+) = Colors(
+    primary = primary,
+    primaryVariant = primaryVariant,
+    secondary = secondary,
+    secondaryVariant = secondaryVariant,
+    background = background,
+    surface = surface,
+    error = error,
+    onPrimary = onPrimary,
+    onSecondary = onSecondary,
+    onBackground = onBackground,
+    onSurface = onSurface,
+    onError = onError,
+    isLight = true,
+)
+
+fun darkColors(
+    primary: Color = Color(0xFFBB86FC),
+    primaryVariant: Color = Color(0xFF3700B3),
+    secondary: Color = Color(0xFF03DAC6),
+    secondaryVariant: Color = secondary,
+    background: Color = Color(0xFF121212),
+    surface: Color = Color(0xFF121212),
+    error: Color = Color(0xFFCF6679),
+    onPrimary: Color = Color.Black,
+    onSecondary: Color = Color.Black,
+    onBackground: Color = Color.White,
+    onSurface: Color = Color.White,
+    onError: Color = Color.Black,
+) = Colors(
+    primary = primary,
+    primaryVariant = primaryVariant,
+    secondary = secondary,
+    secondaryVariant = secondaryVariant,
+    background = background,
+    surface = surface,
+    error = error,
+    onPrimary = onPrimary,
+    onSecondary = onSecondary,
+    onBackground = onBackground,
+    onSurface = onSurface,
+    onError = onError,
+    isLight = false,
+)
+
+internal fun Colors.toMaterialColors(): MaterialColors {
+    return MaterialColors(
+        primary = primary,
+        primaryVariant = primaryVariant,
+        secondary = secondary,
+        secondaryVariant = secondaryVariant,
+        background = background,
+        surface = surface,
+        error = error,
+        onPrimary = onPrimary,
+        onSecondary = onSecondary,
+        onBackground = onBackground,
+        onSurface = onSurface,
+        onError = onError,
+        isLight = isLight,
+    )
+}
+
+internal val LocalColors = staticCompositionLocalOf { lightColors() }

core/ui/compose/theme/src/main/java/app/k9mail/core/ui/compose/theme/K9Theme.kt

@@ -1,8 +1,6 @@
 package app.k9mail.core.ui.compose.theme
 
 import androidx.compose.foundation.isSystemInDarkTheme
-import androidx.compose.material.darkColors
-import androidx.compose.material.lightColors
 import androidx.compose.runtime.Composable
 
 private val k9LightColorPalette = lightColors(

core/ui/compose/theme/src/main/java/app/k9mail/core/ui/compose/theme/MainTheme.kt

@@ -1,7 +1,6 @@
 package app.k9mail.core.ui.compose.theme
 
 import androidx.compose.foundation.isSystemInDarkTheme
-import androidx.compose.material.Colors
 import androidx.compose.material.MaterialTheme
 import androidx.compose.material.Shapes
 import androidx.compose.material.Typography
@@ -30,13 +29,14 @@ fun MainTheme(
     }
 
     CompositionLocalProvider(
+        LocalColors provides colors,
         LocalElevations provides Elevations(),
         LocalImages provides images,
         LocalSizes provides Sizes(),
         LocalSpacings provides Spacings(),
     ) {
         MaterialTheme(
-            colors = colors,
+            colors = colors.toMaterialColors(),
             typography = typography,
             shapes = shapes,
             content = content,
@@ -48,7 +48,7 @@ object MainTheme {
     val colors: Colors
         @Composable
         @ReadOnlyComposable
-        get() = MaterialTheme.colors
+        get() = LocalColors.current
 
     val typography: Typography
         @Composable

core/ui/compose/theme/src/main/java/app/k9mail/core/ui/compose/theme/ThunderbirdTheme.kt

@@ -1,8 +1,6 @@
 package app.k9mail.core.ui.compose.theme
 
 import androidx.compose.foundation.isSystemInDarkTheme
-import androidx.compose.material.darkColors
-import androidx.compose.material.lightColors
 import androidx.compose.runtime.Composable
 
 private val thunderbirdLightColorPalette = lightColors(