更改溢出菜单样式？

Question

我想更改溢出图标，菜单背景颜色和文本颜色的颜色。文字颜色正在变化，我添加了一个新图标，但它比原版更大，原版仍然存在。如何修复溢出按钮并更改背景颜色？提前谢谢。

styles.xml

<?xml version="1.0" encoding="utf-8"?>
<resources>
<style name="AppTheme" parent="Theme.AppCompat.NoActionBar">
<item name="android:colorPrimary">@color/primary</item>
<item name="android:colorPrimaryDark">@color/primary_dark</item>
<item name="android:colorAccent">@color/accent</item>
<item name="android:textColorPrimary">@color/white</item>
<item name="android:windowBackground">@color/window_background</item>

<item name="android:actionOverflowMenuStyle">@style/AppTheme.Overflow</item>
<item name="actionOverflowButtonStyle">@style/AppTheme.Overflow</item>
<item name="android:popupMenuStyle">@style/AppTheme.PopupMenu</item>
<item name="android:textAppearanceLargePopupMenu" >@style/AppTheme.TextAppearanceLargePopupMenu</item>
<item name="android:textAppearanceSmallPopupMenu" >@style/AppTheme.TextAppearanceSmallPopupMenu</item>
</style>

<style name="AppTheme.Overflow" parent="Widget.AppCompat.ActionButton.Overflow">
<item name="android:background">@drawable/ic_overflow</item>
</style>

<style name="AppTheme.PopupMenu" parent="Widget.AppCompat.ListPopupWindow">
<item name="android:popupBackground">@color/window_background</item>
</style>

<style name="AppTheme.TextAppearanceLargePopupMenu" parent="TextAppearance.AppCompat.Widget.PopupMenu.Large">
<item name="android:textColor">@color/light_text</item>
</style>

<style name="AppTheme.TextAppearanceSmallPopupMenu" parent="TextAppearance.AppCompat.Widget.PopupMenu.Small">
<item name="android:textColor">@color/light_text</item>
</style>
</resources>