changing size inside, not the hole slider

Hi, I’m quite noob with this… so I’m really sorry if already been solved… I searched but didn’t find yet. So, here I go.

I got BORDER THEME really nice, and already close finish my site. But, I want to modify one thing first,when using a gallery with the following settings: slideshow, image scaling: fit, show nearby images: enable, slider transition: slide/move. I really want to change the proportion of the images that it shows… I think it’s too small even with that all transition that I find really nice… Not the size of the slider, but the proportion of the images in it.

The gallery is this:

https://www.christianinga.com/gallery/destellos/

And i’d like to modify to bigger like this:

https://www.dropbox.com/s/gez2uihevkh8d7s/2%20slide%20proportion.png?dl=0

I opened a ticket with the creator of the theme, but he told me this is more java script modification and can’t help me. So I appreciate everyone who can give me (or us) a clue.

thanks a lot,

Christian Inga

https://www.ads-software.com/plugins/gallery/