Go to Language editor and search for 'welcome to'   find the text 'Welcome to<br />%s' and replace with your site icon or other image   In this instance I replaced 'Welcome to<br />%s' with<img src="Your Image URL" /> but you may want to keep 'Welcome to' and just replace '%s' with the image.   You can see reults on my site (click image below) - you'll see a Sign Up button has…