migrate to material3

composeApp/build.gradle.kts

@@ -40,7 +40,7 @@ kotlin {
         commonMain.dependencies {
             implementation(compose.runtime)
             implementation(compose.foundation)
-            implementation(compose.material)
+            implementation(compose.material3)
             implementation(compose.ui)
             implementation(compose.components.resources)
             implementation(compose.components.uiToolingPreview)

composeApp/src/commonMain/kotlin/com/jetbrains/kmpapp/App.kt

@@ -1,10 +1,10 @@
 package com.jetbrains.kmpapp
 
 import androidx.compose.foundation.isSystemInDarkTheme
-import androidx.compose.material.MaterialTheme
-import androidx.compose.material.Surface
-import androidx.compose.material.darkColors
-import androidx.compose.material.lightColors
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Surface
+import androidx.compose.material3.darkColorScheme
+import androidx.compose.material3.lightColorScheme
 import androidx.compose.runtime.Composable
 import androidx.navigation.NavHostController
 import androidx.navigation.compose.NavHost
@@ -24,7 +24,7 @@ data class DetailDestination(val objectId: Int)
 @Composable
 fun App() {
     MaterialTheme(
-        colors = if (isSystemInDarkTheme()) darkColors() else lightColors()
+        colorScheme = if (isSystemInDarkTheme()) darkColorScheme() else lightColorScheme()
     ) {
         Surface {
             val navController: NavHostController = rememberNavController()

composeApp/src/commonMain/kotlin/com/jetbrains/kmpapp/screens/EmptyScreenContent.kt

@@ -1,7 +1,7 @@
 package com.jetbrains.kmpapp.screens
 
 import androidx.compose.foundation.layout.Box
-import androidx.compose.material.Text
+import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
 import androidx.compose.ui.Alignment
 import androidx.compose.ui.Modifier

composeApp/src/commonMain/kotlin/com/jetbrains/kmpapp/screens/detail/DetailScreen.kt

@@ -14,14 +14,15 @@ import androidx.compose.foundation.layout.windowInsetsPadding
 import androidx.compose.foundation.rememberScrollState
 import androidx.compose.foundation.text.selection.SelectionContainer
 import androidx.compose.foundation.verticalScroll
-import androidx.compose.material.Icon
-import androidx.compose.material.IconButton
-import androidx.compose.material.MaterialTheme
-import androidx.compose.material.Scaffold
-import androidx.compose.material.Text
-import androidx.compose.material.TopAppBar
 import androidx.compose.material.icons.Icons
 import androidx.compose.material.icons.automirrored.filled.ArrowBack
+import androidx.compose.material3.ExperimentalMaterial3Api
+import androidx.compose.material3.Icon
+import androidx.compose.material3.IconButton
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Scaffold
+import androidx.compose.material3.Text
+import androidx.compose.material3.TopAppBar
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.getValue
@@ -74,11 +75,15 @@ private fun ObjectDetails(
 ) {
     Scaffold(
         topBar = {
-            TopAppBar(backgroundColor = MaterialTheme.colors.background) {
-                IconButton(onClick = onBackClick) {
-                    Icon(Icons.AutoMirrored.Filled.ArrowBack, stringResource(Res.string.back))
+            @OptIn(ExperimentalMaterial3Api::class)
+            TopAppBar(
+                title = {},
+                navigationIcon = {
+                    IconButton(onClick = onBackClick) {
+                        Icon(Icons.AutoMirrored.Filled.ArrowBack, stringResource(Res.string.back))
+                    }
                 }
-            }
+            )
         },
         modifier = modifier.windowInsetsPadding(WindowInsets.systemBars),
     ) { paddingValues ->
@@ -98,7 +103,7 @@ private fun ObjectDetails(
 
             SelectionContainer {
                 Column(Modifier.padding(12.dp)) {
-                    Text(obj.title, style = MaterialTheme.typography.h6.copy(fontWeight = FontWeight.Bold))
+                    Text(obj.title, style = MaterialTheme.typography.headlineMedium)
                     Spacer(Modifier.height(6.dp))
                     LabeledInfo(stringResource(Res.string.label_title), obj.title)
                     LabeledInfo(stringResource(Res.string.label_artist), obj.artistDisplayName)

composeApp/src/commonMain/kotlin/com/jetbrains/kmpapp/screens/list/ListScreen.kt

@@ -18,15 +18,14 @@ import androidx.compose.foundation.layout.safeDrawing
 import androidx.compose.foundation.lazy.grid.GridCells
 import androidx.compose.foundation.lazy.grid.LazyVerticalGrid
 import androidx.compose.foundation.lazy.grid.items
-import androidx.compose.material.MaterialTheme
-import androidx.compose.material.Text
+import androidx.compose.material3.MaterialTheme
+import androidx.compose.material3.Text
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.collectAsState
 import androidx.compose.runtime.getValue
 import androidx.compose.ui.Modifier
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.layout.ContentScale
-import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.unit.dp
 import coil3.compose.AsyncImage
 import com.jetbrains.kmpapp.data.MuseumObject
@@ -99,11 +98,8 @@ private fun ObjectFrame(
 
         Spacer(Modifier.height(2.dp))
 
-        Text(
-            obj.title,
-            style = MaterialTheme.typography.subtitle1.copy(fontWeight = FontWeight.Bold)
-        )
-        Text(obj.artistDisplayName, style = MaterialTheme.typography.body2)
-        Text(obj.objectDate, style = MaterialTheme.typography.caption)
+        Text(obj.title, style = MaterialTheme.typography.titleMedium)
+        Text(obj.artistDisplayName, style = MaterialTheme.typography.bodyMedium)
+        Text(obj.objectDate, style = MaterialTheme.typography.bodySmall)
     }
 }