MonoDevelop variable name color

Hello. I'm using Monokai MonoDevelop theme. //Sorry for maybe wrong terminology from this line forth, I'm new to programming

ANd I'd like to change the variable name colors. By default in this theme they are as follows:

Class variables, like: public class MenuTest: MonoBehaviour {

 public GameObject testObject;
 
 Start() {
 }
 
 }

testObject here will be marked with green color.

But if I declare a variable inside a method, liike this:

 Start() {
 
 GameObject testObject;
 
 }

it will be white.

I'd like to swap their colors, but can't seem to find where to do so. There's no variables coloring inside options -> Syntax Highlighting