I'm working with the F8 Lite Theme at this custom domain. I tried changing the thumbnail size on the home page from 150x150 pixels to 200x200 pixels and even though the featured images I'm using are much larger (625x300 pixels) they're showing up pixelated. I've tried making featured images the exact size of the thumbnails and still it shows up like this. When they're at 150x150 they appear perfect, but taking it up in size by any amount messes up. Any advice would be helpful!