Hi @Mr Alakulihal,
I hope you are well today and thank you for your questions.
1.How to Change Menu Font size, and how to look bold
You can try achieving this by adding the following CSS code in the Custom CSS option of the latest version of Sparkling theme on the below path.
Admin Area -> Appearance -> Customize -> Sparkling Options -> Other -> Custom CSS
nav.navbar-default .navbar-nav > li > a {
font-size: 13px;
font-weight: bold;
}
Please change the font size in the above code to whatever you want to set.
2 Is it possible to make a submenu to be like this image (attachments), into 2 columns
Yes you can make it by developing custom CSS code.
3.how to fix this http://prntscr.com/a3dp1a
You can create third level menu also as described above it will not be displayed because this theme is built on Bootstrap and it doesn’t support this kind of menu structure and one submenu is max but you achieve this by using the custom solution posted in the following reply.
Best Regards,
Movin