BLIX THEME – QUESTION

In \blix\images\spring_flavour is a file called ‘header_bg.jpg
Create an image the same size and upload it to the same folder, overwriting what is there. That will do the trick, though after doing that you may need to press ctrl and f5 together to force a page reload (thats on Windows)

Also remember that you’ll have to do a small bit of coding to remove your blog title (generated by WP), should you not want to use it in your new header.