Reduce Space Between Menu Groups Inside Navigation Drawer

I want to reduce the space between each menu group in the Navigation drawer (In the following image, space between the two lines). I've created a custom style and tried the follow

Solution 1:

I think you must override design_navigation_separator_vertical_padding dimens in your project dimes.xml

 <dimen name="design_navigation_separator_vertical_padding" tools:override="true">0dp</dimen>

Solution 2:

Add this line in dimens in your project dimens.xml

<dimen name="design_navigation_separator_vertical_padding" tools:override="true">0dp</dimen>