OsmAnd/OsmAnd/res/drawable/btn_round_blue_bottom.xml

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">

    <item android:state_pressed="true"><shape android:shape="rectangle">
        <solid android:color="@color/map_widget_blue_pressed" />
        <corners android:bottomLeftRadius="@dimen/map_button_rect_rad"/>
        <corners android:bottomRightRadius="@dimen/map_button_rect_rad"/>
    </shape></item>
    <item android:state_enabled="false"><shape android:shape="rectangle">
        <solid android:color="@color/plugin_details_install_header_bg_light" />
        <corners android:bottomLeftRadius="@dimen/map_button_rect_rad"/>
        <corners android:bottomRightRadius="@dimen/map_button_rect_rad"/>
    </shape></item>
    <item><shape android:shape="rectangle">
        <solid android:color="@color/map_widget_blue" />
        <corners android:bottomLeftRadius="@dimen/map_button_rect_rad"/>
        <corners android:bottomRightRadius="@dimen/map_button_rect_rad"/>
    </shape></item>

</selector>