The menu.css attached is the default one, so it makes sense it doesn't change anything
however, you may be able to modify it to maybe solve the problem:
Apparently the hovered item as a background color; so it's only the menu background.
so in this part:
.gldimenu { background-color: @menu_bg_color; background-image: none;
color: @menuitem_text_color;
}
The menu.css attached is the default one, so it makes sense it doesn't change anything
however, you may be able to modify it to maybe solve the problem:
Apparently the hovered item as a background color; so it's only the menu background.
background- color: @menu_bg_color;
background- image: none; text_color;
so in this part:
.gldimenu {
color: @menuitem_
}