This template provides a new way to add supported classes to gallery images on a per-image basis.
To apply a class to all images in a gallery, this template isn't needed. Simply use <gallery class="...">
as the gallery's opening tag.
Usage
Add the template to the caption of the gallery image you'd like the class applied to. The first parameter is the class name. Multiple classes can be separated by spaces.
For a list of classes supported by this template, see here.
Example
<gallery> MarioMP8Artwork.png|[[Mario]]{{class|blackbg}} Luigi Artwork - Mario Party 7.png|[[Luigi]]{{class|graybg}} NSMBDS Bowser Artwork.png|[[Bowser]] </gallery>