jetpack compose - Row background

MainActivity.kt

package com.cfsuman.jetpackcompose

import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import androidx.activity.compose.setContent
import androidx.compose.foundation.background
import androidx.compose.foundation.layout.*
import androidx.compose.material.*
import androidx.compose.runtime.*
import androidx.compose.ui.Alignment
import androidx.compose.ui.Modifier
import androidx.compose.ui.graphics.Brush
import androidx.compose.ui.graphics.Color
import androidx.compose.ui.tooling.preview.Preview
import androidx.compose.ui.unit.dp

class MainActivity : AppCompatActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)

        setContent {
            GetScaffold()
        }
    }


    @Composable
    fun GetScaffold(){
        Scaffold(
            topBar = {TopAppBar(
                title = {Text(
                    "Compose - Row Background",
                    color = Color.White)},
                backgroundColor = Color(0xFF58427C)) },
            content = {MainContent()},
            backgroundColor = Color(0xFFEDEAE0)
        )
    }


    @Composable
    fun MainContent(){
        Column(
            modifier = Modifier
                .fillMaxSize()
                .padding(8.dp),
            verticalArrangement = Arrangement.SpaceEvenly
        ) {
            Row(
                modifier = Modifier
                    .padding(12.dp)
                    .background(Color(0xFF89CFF0))
                    .fillMaxSize()
                    .weight(1f)
                    .wrapContentSize(align = Alignment.Center)
            ) {
                Text(
                    text = "Row Background",
                    style = MaterialTheme.typography.h5
                )
            }

            Row(
                modifier = Modifier
                    .padding(12.dp)
                    .background(
                        Brush.linearGradient(
                            listOf(
                                Color(0xFFFF7E00),
                                Color(0xFF8DB600),
                                Color(0xFF9966CC)
                            )
                        )
                    )
                    .fillMaxSize()
                    .weight(1f)
                    .wrapContentSize(align = Alignment.Center)
            ) {
                Text(
                    text = "Gradient Background",
                    style = MaterialTheme.typography.h5
                )
            }
        }
    }


    @Preview
    @Composable
    fun ComposablePreview(){
        //GetScaffold()
    }
}