Help:Changing the color of the transparency checker pattern

The default checker pattern shown behind transparent images on hover is light for Hydra wikis, and dark for HydraDark wikis. If you need to force a pattern other than the default at a particular wiki, use the following code.

To dark checker pattern[]

/* Switch to dark checker background pattern for transparent images */
.filehistory a img, #file img:hover {
	background: url(/skins/HydraDark/images/dark/Checker-16x16.png?3681f) repeat scroll 0 0 rgba(0,0,0,0) !important;
}

To light checker pattern[]

/* Switch to light checker background pattern for transparent images */
.filehistory a img, #file img:hover {
    background: #fff url(data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAABAAAAAQCAAAAAA6mKC9AAAAGElEQVQYV2N4DwX/oYBhgARgDJjEAAkAAEC99wFuu0VFAAAAAElFTkSuQmCC) repeat !important;
}