vtosters/smali/res/drawable/vkui_bg_button_green_big_radius.xml

<?xml version="1.0" encoding="utf-8"?>
<selector
  xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_enabled="true">
        <ripple android:color="#26000000">
            <item>
                <shape>
                    <solid android:color="#ff4bb34b" />
                    <corners android:radius="@dimen/vkui_button_corner_big_radius" />
                </shape>
            </item>
        </ripple>
    </item>
    <item>
        <shape>
            <solid android:color="#664bb34b" />
            <corners android:radius="@dimen/vkui_button_corner_big_radius" />
        </shape>
    </item>
</selector>