Wes,
I want to put in a header logo that 250x72px but the image tool in the Header editor wants to crop it. How can I put a logo that size in my header? Do I need to make css changes? I tried changing the css to this but it still wants to crop my logo.
.header-image .site-title a {
float: left;
min-height: 72px;
width: 250px;
}