Add some previews.

features/onboarding/src/main/kotlin/io/element/android/features/onboarding/OnBoardingScreen.kt

@@ -24,6 +24,7 @@ import androidx.compose.foundation.layout.fillMaxWidth
 import androidx.compose.foundation.layout.padding
 import androidx.compose.foundation.layout.size
 import androidx.compose.foundation.layout.systemBarsPadding
+import androidx.compose.material3.MaterialTheme
 import androidx.compose.runtime.Composable
 import androidx.compose.runtime.LaunchedEffect
 import androidx.compose.runtime.getValue
@@ -37,12 +38,15 @@ import androidx.compose.ui.res.painterResource
 import androidx.compose.ui.res.stringResource
 import androidx.compose.ui.text.font.FontWeight
 import androidx.compose.ui.text.style.TextAlign
+import androidx.compose.ui.tooling.preview.Preview
 import androidx.compose.ui.unit.dp
 import androidx.compose.ui.unit.sp
 import com.google.accompanist.pager.ExperimentalPagerApi
 import com.google.accompanist.pager.HorizontalPager
 import com.google.accompanist.pager.HorizontalPagerIndicator
 import com.google.accompanist.pager.rememberPagerState
+import io.element.android.libraries.designsystem.preview.ElementPreviewDark
+import io.element.android.libraries.designsystem.preview.ElementPreviewLight
 import io.element.android.libraries.designsystem.theme.components.Button
 import io.element.android.libraries.designsystem.theme.components.Text
 import io.element.android.libraries.testtags.TestTags
@@ -150,6 +154,7 @@ fun OnBoardingPage(
                     .padding(8.dp),
                 textAlign = TextAlign.Center,
                 fontWeight = FontWeight.Bold,
+                color = MaterialTheme.colorScheme.primary,
                 fontSize = 24.sp,
             )
             Text(
@@ -158,7 +163,23 @@ fun OnBoardingPage(
                     .fillMaxWidth()
                     .align(CenterHorizontally),
                 textAlign = TextAlign.Center,
+                color = MaterialTheme.colorScheme.primary,
             )
         }
     }
 }
+
+@Preview
+@Composable
+internal fun OnBoardingScreenLightPreview() =
+    ElementPreviewLight { ContentToPreview() }
+
+@Preview
+@Composable
+internal fun OnBoardingScreenDarkPreview() =
+    ElementPreviewDark { ContentToPreview() }
+
+@Composable
+private fun ContentToPreview() {
+    OnBoardingScreen()
+}