SelectionButtonAnimation.kt

val selectionOffsetX by animateDpAsState(
    targetValue = if (selected == CategoryType.EXPENSE) halfBoxWidth else 0.dp,
)
val selectionWidth by animateDpAsState(
    targetValue = if (selected == null) boxWidth else halfBoxWidth,
)
val leftCornerRadius by animateDpAsState(
    targetValue = when (selected) {
        CategoryType.EXPENSE -> 0.dp
        else -> 4.dp
    }
)
val rightCornerRadius by animateDpAsState(
    targetValue = when (selected) {
        CategoryType.INCOME -> 0.dp
        else -> 4.dp
    }
)
val selectionShape by remember {
    derivedStateOf {
        RoundedCornerShape(
            topStart = leftCornerRadius,
            bottomStart = leftCornerRadius,
            topEnd = rightCornerRadius,
            bottomEnd = rightCornerRadius,
        )
    }
}