session-android/res/drawable/rounded_rectangle_dark.xml

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android" android:shape="rectangle" >
    <solid android:color="@color/gray70"/>
    <stroke android:width="1dp" android:color="@color/gray70"/>
    <corners android:radius="10dp"/>
    <padding android:bottom="5dp" android:left="5dp" android:right="5dp" android:top="5dp"/>
</shape>