Large 1200px category headers images

sorry the links are not correct. I write again the question

is it possible to have large 1200px images in category header like in http://goo.gl/uv7JaF but smaller DIFFERENT square images when all the category images are displayed (like in http://goo.gl/m9aJi2)?

Because otherwise they occupy just a part of the screen like in http://goo.gl/nFiVd1 or you have to choose large images that they look good when cropped from the center and that quite rare.

Thank you Mauro

Thank you Josue,

I will look into it. I suppose this code should be added in the functions.php in the enfold folder. But I don’t like to mess with it because in this case it would be better to have a child theme.

How to remove the sub-category long header image from the second page but leaving the square small ones in the first?

Thank you
Mauro

Thank you