select sizes of media files

Hi,

I have checked with your theme, it creates some images for displaying on the website.

I have not looked through all of it but some of them do not need to created.

My questions are…

1) are these size of images created by your theme?

40×40,  60×60,  100×100,  480x … , 600x …, 672x…, 768x…

I just now checked with plain WP(almost no pugins and just this theme), the image was created all this sizes.

2) Is there any way to stop creating these images which are not needed?

Of course, it is better to keep it all when we change the site layout etc.

That would be great if we can select this by the theme panel and showed what size will show where, so we can define easily.

3) Is there any page to check which image is using where?

If we can define which size of image where, and if you can choose images to create like 2), that would be much lighter within the server.

All best,