### DialogSample
```kotlin
@Composable
fun DialogSample() {
    val openDialog = remember { mutableStateOf(true) }
    val dialogWidth = 200.dp
    val dialogHeight = 50.dp
    if (openDialog.value) {
        Dialog(onDismissRequest = { openDialog.value = false }) {
            // Draw a rectangle shape with rounded corners inside the dialog
            Box(Modifier.size(dialogWidth, dialogHeight).background(Color.White))
        }
    }
}
```