As mentioned here Android set edit text style globally in theme doesn't work I have tried changing styles in theme file but globally it does not work. When I add it on individual component it works
My theme
<resources
xmlns:tools="http://schemas.android.com/tools">
<!-- Base application theme. -->
<style name="Theme.Comp" parent="Theme.MaterialComponents.DayNight.NoActionBar">
<!-- Primary brand color. -->
<item name="colorPrimary">@color/purple_500</item>
<item name="colorPrimaryVariant">@color/purple_700</item>
<item name="colorOnPrimary">@color/white</item>
<!-- Secondary brand color. -->
<item name="colorSecondary">@color/teal_200</item>
<item name="colorSecondaryVariant">@color/teal_700</item>
<item name="colorOnSecondary">@color/black</item>
<!-- Status bar color. -->
<item name="android:statusBarColor">?attr/colorPrimaryVariant</item>
<!-- Customize your theme here. -->
<item name="android:buttonCornerRadius">20dp</item>
<item name="android:backgroundTint">@color/black</item>
<item name="editTextStyle">@style/edittext</item>
</style>
<style name="redButton" parent="android:Widget.TextView">
<item name="cornerRadius">12dp</item>
<item name="backgroundTint">#f89840</item>
<item name="elevation">20dp</item>
<item name="addElevationShadow">true</item>
</style>
<style name="edittext" parent="android:Widget.EditText">
<item name="android:background">@drawable/editextborder</item>
<item name="android:textColor">@color/purple_500</item>
<item name="android:textSize">27sp</item>
<item name="hintTextColor">@color/purple_200</item>
<item name="borderRound">2dp</item>
</style>
</resources>