Change the caption to display the Title of an image

Hello, first- thanks for this fantastic module!

Now, my problem: I would like to display the Title of an image as the caption because the Title allows for much lengthier captions than the description field.

Looking at the code of the module, it seems that line 291 of galleria.module is what I would want to modify:

$caption = ($image->description != $image->filename) ? $image->description : '';

Any ideas on what I could swap out "description" with? In my node.tpl.php file, I can use print $node->field_image[i]['data']['title'] and it will display the Title field of the image. That doesn't work here. Is there an easy way to do this?

Thanks in advance for any help.