Alternative for Product image colourbox on Mobile view?

[vampirehunter]

On Mobile XS View,

 

is there any method to have the enlarged pictures go full width or height?

Currently, on mobile, clicking on the thumbnail just opens the lightbox colourbox and you get a black transparent background around the image and the image is a bit too small.

 

Was wondering if anyone has implemented a better solution or a way to tweak the existing one?

 

thanks