Telegram / TMessagesProj / src / main / res / drawable / shape_001.xml

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle"
    >
    <corners android:radius="3dp"/>
    <solid android:color="@color/_D1D1D1"/>

</shape>