crystal-wallet-android/app/src/main/res/values/styles.xml

<resources>

    <style name="stylishDialog" parent="android:Theme.Dialog">
        <item name="android:windowBackground">@color/whiteColor</item>
        <item name="android:textColor">@color/black</item>
        <item name="android:textSize">24sp</item>
        <item name="android:textStyle">normal</item>
        <item name="android:gravity">center</item>
    </style>

    <style name="MyMaterialTheme" parent="MyMaterialTheme.Base">

    </style>

    <style name="MyMaterialTheme.Base" parent="Theme.AppCompat.Light.DarkActionBar">
        <item name="windowNoTitle">true</item>
        <item name="windowActionBar">false</item>
        <item name="colorPrimary">@color/colorPrimary</item>
        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
        <item name="colorAccent">@color/colorAccent</item>

        <item name="android:dialogTheme">@style/CustomDialog</item>
    </style>

    <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
        <!-- Customize your theme here. -->
        <item name="colorPrimary">@color/colorPrimary</item>
        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
        <item name="colorAccent">@color/colorAccent</item>
        <item name="android:homeAsUpIndicator">@drawable/back_button_image</item>
        <item name="android:dialogTheme">@style/CustomDialog</item>
        <item name="android:colorButtonNormal">@color/white</item>
        <item name="android:fontFamily">@font/opensans</item>
        <item name="fontFamily">@font/opensans</item> <!-- target android sdk versions < 26 and > 14 if theme other than AppCompat -->
    </style>

    <style name="AppTheme.NoActionBar" parent="AppTheme">
        <item name="windowActionBar">false</item>
        <item name="windowNoTitle">true</item>
    </style>

    <style name="AppTheme.AppBarOverlay" parent="ThemeOverlay.AppCompat.Dark" >
    </style>

    <style name="AppTheme.PopupOverlay" parent="ThemeOverlay.AppCompat.Light" />

    <style name="splashTheme" parent="Theme.AppCompat.Light.NoActionBar">
        <!-- Customize your theme here. -->
        <item name="android:windowNoTitle">true</item>
        <item name="android:background">@color/white</item>
        <item name="colorPrimary">@color/colorPrimary</item>
        <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
        <item name="colorAccent">@color/colorAccent</item>
    </style>

    <style name="CustomDialog" parent="@style/Theme.AppCompat.Light.Dialog">
        <item name="android:windowNoTitle">true</item>
    </style>

    <style name="SendTransactionTheme" parent="Theme.AppCompat.Light.Dialog">
        <item name="android:windowAnimationStyle">@style/SendTransactionAnimation.Window</item>
    </style>

    <style name="SendTransactionAnimation.Window" parent="@android:style/Animation.Activity">
        <item name="android:windowEnterAnimation">@anim/send_transaction_in</item>
        <item name="android:windowExitAnimation">@anim/send_transaction_out</item>
    </style>

    <style name="ReceiveTransactionTheme" parent="Theme.AppCompat.Light.Dialog">
        <item name="android:windowAnimationStyle">@style/ReceiveTransactionAnimation.Window</item>
    </style>

    <style name="ReceiveTransactionAnimation.Window" parent="@android:style/Animation.Activity">
        <item name="android:windowEnterAnimation">@anim/receive_transaction_in</item>
        <item name="android:windowExitAnimation">@anim/receive_transaction_out</item>
    </style>

    <style name="AccountsTheme" parent="Theme.AppCompat.DayNight.Dialog">
        <item name="android:windowBackground">@color/transparent</item>
        <item name="android:windowAnimationStyle">@style/AccountsAnimation.Window</item>
    </style>

    <style name="AccountsAnimation.Window" parent="@android:style/Animation.Activity">
        <item name="android:windowEnterAnimation">@anim/accounts_in</item>
        <item name="android:windowExitAnimation">@anim/accounts_out</item>
    </style>
</resources>