Hello,
1. The “Page title background image” option set the image for the appropriate category.
https://gyazo.com/c0068d8cac7e7f4bc997f233c014fd27
https://gyazo.com/4d096a26fa07f779adaae6e64604e243
2. The “Page title background color” option set another color for the appropriate category.
https://gyazo.com/8691e6fc4a033f5d68b84ac42480fcdc
https://gyazo.com/a8fb70cc4aefb66cf5dd7c76067d410f
3. The “Image (icon) for categories navigation on the shop page” option set the icon for the category.
https://gyazo.com/77f15f4121ce8d2444d4944f184c4b91
https://gyazo.com/a6ad7c70d4b02afb83b20f15b0536117
4. The “Custom template for products” option defines another product template for each product that is in this category.
https://gyazo.com/e2779cc0d43ebd749c099ac1e0fbc17b
Let me know if you have any questions, I’d be happy to answer them.
Kind Regards