Hi guys! I've got a buttheart with "data-size" attribute of link which calls lightbox. I have different sizes of images because of landscape and portrait orientation in one gallery. So I deside this bad :) I just fix only width and set data-size="1600x", for example. After line 15022 size = linkEl.getAttribute('data-size').split('x'); I just add var linkElC = linkEl.children[0], linkElW = linkElC.naturalWidth / linkElC.naturalHeight; and

           // create slide object
            item = {
                src: linkEl.getAttribute('href'),
                w: parseInt(size[0], 10),
                h: parseInt(size[1], 10)
            };

change to

           // create slide object
            item = {
                src: linkEl.getAttribute('href'),
                w: parseInt(size[0], 10),
                h: parseInt(size[1] || size[0] / linkElW, 10)
            };

. You can use include it in future and make a code for calculating width too if height in data-size was setted. As data-size="x900" for example.

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