I’m sorry, I don’t think I’ve heard of metaslider. I was trying to just use the standard header image (set in Customize -> Header Image -> Current Header) but it never seemed to be able to figure out the correct size. I finally gave up and switched to using widgetkit for a single slide. Seems like a lot of overhead for a simple image display. But I hope to add a slider of images in the future – once I can find and edit a bunch to a long narrow horizontal size. I’m still getting a small strip of the header image below the slider, but I changed it to a color that matched my site’s scheme for now and it looks ok. Widgetkit does seem a bit sketchy in regards to sizing.