If you want to customize the banner logo on your website, you can easily do so by editing your custom.css file.
Personalized Title
To change the text displayed on the banner, just insert these lines into your custom.css:
#homepage_banner::before{content:"Explore our website"}
#homepage_banner img{display:none;}
You may need to add some extra styling for a better look.
Unique Banner Logo
To replace the banner logo with your own image, upload your logo to ~/.custom/static/logo.png and then include the following code in your custom.css file:
#homepage_banner img{
display:block;
background: url(/static/logo.png) no-repeat;
width: 200px;
height: 50px;
padding-left: 20px;
-moz-box-sizing: border-box;
box-sizing: border-box;
}
By following these steps (and tweaking the CSS), your homepage will have a fresh new look :)
I found most of this information from this recent email thread, and the necessary CSS tips from here. You might also find these "hacking" notebooks interesting.