ui: surfaceContainer background

app/src/main/java/agzam/vyatsu/ui/schedule/ScheduleScreen.kt

@@ -41,6 +41,7 @@ import androidx.compose.material3.FilterChipDefaults
 import androidx.compose.material3.HorizontalDivider
 import androidx.compose.material3.Icon
 import androidx.compose.material3.IconButton
+import androidx.compose.material3.LocalContentColor
 import androidx.compose.material3.MaterialTheme
 import androidx.compose.material3.Text
 import androidx.compose.material3.TextButton
@@ -149,7 +150,6 @@ fun ScheduleScreen(viewModel: ScheduleViewModel, onSwitchGroup: () -> Unit) {
                         )
 
                         HorizontalDivider(Modifier.padding(top=0.dp, start = hPadding, end = hPadding))
-
                         if (day.intervals.all { it.lessons.isEmpty() }) {
                             Text("Занятий нет", style = MaterialTheme.typography.bodyLarge)
                         } else {
@@ -310,13 +310,11 @@ private fun LessonSlot(slotIndex: Int, slot: TimeSlot) {
             Text("—", style = MaterialTheme.typography.bodyMedium)
         } else {
             slot.lessons.forEachIndexed { index, lesson ->
-                val baseSurface = MaterialTheme.colorScheme.surfaceContainer
-                val backgroundColor = if (indexColor % 2 == 0) {
-                    baseSurface
-                } else {
-                    baseSurface.copy(alpha = 1f).compositeOver(
-                        MaterialTheme.colorScheme.onSurface.copy(alpha = 0.03f)
-                    )
+                var baseSurface = Modifier.fillMaxWidth().padding(vertical = 2.dp)
+                if ((indexColor) % 2 != 0) {
+                    baseSurface = baseSurface.background(
+                        MaterialTheme.colorScheme.surfaceContainer
+                    );
                 }
                 indexColor++
                 // XXX:
@@ -326,7 +324,7 @@ private fun LessonSlot(slotIndex: Int, slot: TimeSlot) {
                 // Меню на onLongClick?
                 SelectionContainer() {
                     Column(
-                        Modifier.fillMaxWidth().padding(vertical = 2.dp).background(backgroundColor)
+                        baseSurface
                         // XXX: combinedClickable?
                         //.combinedClickable(
                         //    onClick = {