Hi,
to change the display of images in the menu, you can use CSS
I know that, the problem is I don’t know if the problem is the plugin or the theme. I don’t know what to look for. That is why I neeed you.
http://s1284.photobucket.com/user/paginamercedes/media/problem_zps791cc4d0.jpg.html?sort=3&o=0
I’ve just tried a different theme, I have the same problem so it is the plugin. When uploading a picture to hoover it modifies the size of the menu automaticaly. The second theme used is newmedia http://ww.wp.xz.cn/themes/newmedia
I think something wrong with image size, try to change size for all menu item and click “Save menu”
I can’t change font size for characters in the menu, for that I use Font plugin but the results are the same as your plugin. There are no other items as I know. What I want is this: http://www.mercedes-benz.ro/content/romania/mpc/mpc_romania_website/rong/home_mpc/passengercars.html
When hoovering over classes you can see a picture of the car. I’m not interested in adding information inside the picture.
Oh, now i understand what you, but you still need to use CSS.
For changing html of menu item just copy “menu_image_nav_menu_item_filter” function from plugin to your functions.php, rename this function and add filter:
add_filter( 'walker_nav_menu_start_el', 'menu_image_nav_menu_item_filter', 10, 4 );
And you can wrap image in menu item in some html code, like <span> and than with CSS add position absolute on image hover and “top” param to change position of wrapped image.
if it is too difficult for you, try to consult a specialist on site like odesk.com or freelance, or to the company in which I work (http://html-and-cms.com/). It will cost you a few dollars.