jetpack compose - How to use Text

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.fillMaxWidth
import androidx.compose.foundation.layout.padding
import androidx.compose.material.Text
import androidx.compose.runtime.Composable
import androidx.compose.ui.Modifier
import androidx.compose.ui.graphics.Color
import androidx.compose.ui.text.font.FontFamily
import androidx.compose.ui.text.font.FontStyle
import androidx.compose.ui.text.font.FontWeight
import androidx.compose.ui.text.style.TextAlign
import androidx.compose.ui.text.style.TextDecoration
import androidx.compose.ui.tooling.preview.Preview
import androidx.compose.ui.unit.dp
import androidx.compose.ui.unit.sp

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

        setContent {
            MainContent()
        }
    }


    @Composable
    fun MainContent(){
        Text(
            text = "Text In Compose.",
            color = Color.Red,
            textDecoration = TextDecoration.Underline,
            textAlign = TextAlign.Center,
            fontSize = 35.sp,
            fontStyle = FontStyle.Italic,
            fontWeight = FontWeight.Bold,
            fontFamily = FontFamily.Monospace,
            modifier = Modifier
                .background(Color.Yellow)
                .padding(15.dp)
                .fillMaxWidth()
        )
    }


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