NativeScript/apps/app/ui-tests-app/tab-view/tab-view-icon.xml

<Page xmlns="http://schemas.nativescript.org/tns.xsd">
    <TabView id="tab-view" tabTextColor="green" selectedTabTextColor="red" tabBackgroundColor="yellow">
        <TabView.items>
            <TabViewItem iconSource="res://icon">
                <TabViewItem.view>
                    <Button text="undefined" tap="onChangeRenderingMode"/>
                </TabViewItem.view>
            </TabViewItem>
            <TabViewItem iconSource="res://add_to_fav">
                <TabViewItem.view>
                    <Button text="undefined" tap="onChangeRenderingMode"/>
                </TabViewItem.view>
            </TabViewItem>
            <TabViewItem iconSource="res://icon" title="NativeScript">
                <TabViewItem.view>
                    <Button text="undefined" tap="onChangeRenderingMode"/>
                </TabViewItem.view>
            </TabViewItem>
            <TabViewItem iconSource="res://add_to_fav" title="Favorites">
                <TabViewItem.view>
                    <Button text="undefined" tap="onChangeRenderingMode"/>
                </TabViewItem.view>
            </TabViewItem>
        </TabView.items>
    </TabView>
</Page>