diff --git a/app/src/main/java/com/infomaniak/swisstransfer/ui/components/BottomStickyButtonScaffold.kt b/app/src/main/java/com/infomaniak/swisstransfer/ui/components/BottomStickyButtonScaffold.kt
index 9d385f701..859a41ad8 100644
--- a/app/src/main/java/com/infomaniak/swisstransfer/ui/components/BottomStickyButtonScaffold.kt
+++ b/app/src/main/java/com/infomaniak/swisstransfer/ui/components/BottomStickyButtonScaffold.kt
@@ -27,8 +27,8 @@ import androidx.compose.ui.Modifier
 fun BottomStickyButtonScaffold(
     modifier: Modifier = Modifier,
     topBar: @Composable () -> Unit,
-    topButton: @Composable (Modifier) -> Unit,
-    bottomButton: @Composable (Modifier) -> Unit,
+    topButton: @Composable ((Modifier) -> Unit)? = null,
+    bottomButton: @Composable ((Modifier) -> Unit)? = null,
     content: @Composable BoxScope.() -> Unit,
 ) {
     Scaffold(topBar = topBar) { contentPaddings ->
diff --git a/app/src/main/java/com/infomaniak/swisstransfer/ui/components/DoubleButtonCombo.kt b/app/src/main/java/com/infomaniak/swisstransfer/ui/components/DoubleButtonCombo.kt
index 004522e06..8420658ce 100644
--- a/app/src/main/java/com/infomaniak/swisstransfer/ui/components/DoubleButtonCombo.kt
+++ b/app/src/main/java/com/infomaniak/swisstransfer/ui/components/DoubleButtonCombo.kt
@@ -30,18 +30,24 @@ private val WIDTH_THRESHOLD = 500.dp
 
 @Composable
 fun ColumnScope.DoubleButtonCombo(
-    topButton: @Composable (Modifier) -> Unit,
-    bottomButton: @Composable (Modifier) -> Unit
+    topButton: @Composable ((Modifier) -> Unit)? = null,
+    bottomButton: @Composable ((Modifier) -> Unit)? = null
 ) {
     BoxWithConstraints(
         modifier = Modifier
             .widthIn(max = WIDTH_LIMIT)
             .align(Alignment.CenterHorizontally),
     ) {
-        if (maxWidth < WIDTH_THRESHOLD) {
-            VerticallyStackedButtons(topButton, bottomButton)
-        } else {
-            HorizontallyStackedButtons(topButton, bottomButton)
+        when {
+            topButton == null && bottomButton == null -> Unit
+            topButton != null && bottomButton != null -> {
+                if (maxWidth < WIDTH_THRESHOLD) {
+                    VerticallyStackedButtons(topButton, bottomButton)
+                } else {
+                    HorizontallyStackedButtons(topButton, bottomButton)
+                }
+            }
+            else -> SingleButton(button = topButton ?: bottomButton!!)
         }
     }
 }
@@ -84,3 +90,13 @@ private fun HorizontallyStackedButtons(
         bottomButton(Modifier.weight(1f))
     }
 }
+
+@Composable
+private fun SingleButton(button: @Composable (Modifier) -> Unit) {
+    button(
+        Modifier
+            .fillMaxWidth()
+            .widthIn(WIDTH_LIMIT / 2)
+            .padding(bottom = Margin.Large, start = Margin.Medium, end = Margin.Medium),
+    )
+}
diff --git a/app/src/main/java/com/infomaniak/swisstransfer/ui/components/LargeButton.kt b/app/src/main/java/com/infomaniak/swisstransfer/ui/components/LargeButton.kt
index d3d868f1d..516e75ccc 100644
--- a/app/src/main/java/com/infomaniak/swisstransfer/ui/components/LargeButton.kt
+++ b/app/src/main/java/com/infomaniak/swisstransfer/ui/components/LargeButton.kt
@@ -20,6 +20,7 @@ package com.infomaniak.swisstransfer.ui.components
 
 import android.content.res.Configuration
 import androidx.annotation.StringRes
+import androidx.compose.foundation.background
 import androidx.compose.foundation.layout.*
 import androidx.compose.material3.*
 import androidx.compose.runtime.Composable
@@ -81,31 +82,21 @@ enum class ButtonType(val buttonColors: @Composable () -> ButtonColors) {
     }),
 }
 
-@Preview
-@Preview(uiMode = Configuration.UI_MODE_NIGHT_YES or Configuration.UI_MODE_TYPE_NORMAL)
+@Preview(name = "Light")
+@Preview(name = "Dark", uiMode = Configuration.UI_MODE_NIGHT_YES or Configuration.UI_MODE_TYPE_NORMAL)
 @Composable
 private fun LargeButtonPreview() {
     SwissTransferTheme {
-        Column {
-            LargeButton(
-                titleRes = R.string.appName,
-                imageVector = AppIcons.Add,
-                onClick = {},
-            )
-            Spacer(modifier = Modifier.height(Margin.Small))
-            LargeButton(
-                titleRes = R.string.appName,
-                imageVector = AppIcons.Add,
-                style = ButtonType.SECONDARY,
-                onClick = {},
-            )
-            Spacer(modifier = Modifier.height(Margin.Small))
-            LargeButton(
-                titleRes = R.string.appName,
-                imageVector = AppIcons.Add,
-                style = ButtonType.TERTIARY,
-                onClick = {},
-            )
+        Column(modifier = Modifier.background(SwissTransferTheme.materialColors.background)) {
+            ButtonType.entries.forEach {
+                LargeButton(
+                    titleRes = R.string.appName,
+                    style = it,
+                    imageVector = AppIcons.Add,
+                    onClick = {},
+                )
+                Spacer(modifier = Modifier.height(Margin.Small))
+            }
         }
     }
 }