Hello Sandy,
Thank you so much for using our theme.
1. Have you installed the plugin and fix the image size as mentioned in documentation ? http://www.acmethemes.com/blog/2016/03/supermagpro-best-magazine-wordpress-theme/
2. Middle section means? Hope after fixing this the image it may work.
3. You can change the site Primary color to change the icons visible.
Hope this will help you.
Best Regards,
Acme Supports