Hi Annie, good to see a fellow-blogger exploring this unknown territory. I guess your approach to replacing your title is quite good. It looks good at your testblog, so it works like it should.
I have a few suggestions for the coding:
You could remove the border-statement from your header-wrapper, instead of setting it to 0px;
If there are no other calls to the $bordercolor-variable, you can remove this variable from the css; this will remove it from the fonts&colors layout editor as well.
You have made the title invisible by setting its color to white and its size to 0 (is that correct?).
You could instead insert the code
display: none; in the css-part of header h1.
I did it, and it works! I suppose there are other ways to accomplish the same thing, but I like this. It is clean and simple. Thanks, Hans!