How to change Entry cursor color in Xamarin.android

Hi everyone, In my application need to change xamarin.android entry default color. In my application background image is black and default color of entry in xamarin.android also same color, so need to set different color. Please suggest any idea on that. I am trying fallowing code but I am not getting exact result.

In my xamarin.android project folder contain resource folder inside values folder, we have file 'styles.xml' file. In that is item name 'colorAccent' inside style tag like this.

Sample code:

 <style name="MainTheme.Base" parent="Theme.AppComa.Light.DarkActionBar">
   <item name="colorAccent">#ffffff</item>
 </style>

In colorAccent item name default set as black, now I am change in to white but when run project like this all entry cursor color change to white but with cursor, entry's color also change to white. My requirement is only changing the entry cursor color, remaining is same.