Fix logo color and sizing in empty screen.

app/src/main/java/org/thoughtcrime/securesms/main/MainActivityComponents.kt

@@ -11,6 +11,7 @@ import androidx.compose.foundation.background
 import androidx.compose.foundation.layout.Box
 import androidx.compose.foundation.layout.fillMaxSize
 import androidx.compose.foundation.layout.padding
+import androidx.compose.foundation.layout.size
 import androidx.compose.material3.Icon
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.adaptive.layout.ThreePaneScaffoldRole
@@ -26,6 +27,7 @@ import androidx.compose.ui.Modifier
 import androidx.compose.ui.draw.clip
 import androidx.compose.ui.graphics.Color
 import androidx.compose.ui.res.painterResource
+import androidx.compose.ui.unit.dp
 import androidx.lifecycle.viewmodel.compose.LocalViewModelStoreOwner
 import androidx.navigation.NavGraphBuilder
 import androidx.navigation.NavHostController
@@ -35,6 +37,9 @@ import androidx.navigation.compose.rememberNavController
 import androidx.navigation.createGraph
 import org.thoughtcrime.securesms.R
 
+/**
+ * Displayed when the user has not selected content for a given tab.
+ */
 @Composable
 fun EmptyDetailScreen() {
   Box(
@@ -45,8 +50,10 @@ fun EmptyDetailScreen() {
     Icon(
       painter = painterResource(R.drawable.ic_signal_logo_large),
       contentDescription = null,
-      tint = Color(0x58607152),
+      tint = MaterialTheme.colorScheme.secondary.copy(alpha = 0.32f),
-      modifier = Modifier.align(Alignment.Center)
+      modifier = Modifier
+        .size(80.dp)
+        .align(Alignment.Center)
     )
   }
 }