Remove background-color

[mdo]

While implementing Holder, I realized that it overrides any background-color set in my CSS. Here's a screenshot and the relevant CSS:

.img-polaroid {
  padding: 4px;
  background-color: #fff;
  border: 1px solid #ccc;
}

When used on a Holder image, the background-color is overwritten by the default theme. If I remove #L79, the problem is resolved and my CSS remains intact (note the white borders here given the padding and background I set in CSS).

Any reason the <img> gets a background color in addition to the image?

[imsky]

The reason background color is set is so that Holder can gracefully degrade on clients that don't support <canvas> (IE6, Android 2.*). It's possible that it'll also be used in the future as another way to implement fluid placeholders.