I am fiddling with making blog backgrounds ... and probably doing it the wrong way ...
but this seems like a good place to put this so I can link to it to test it out ...
somehow I don't think it will work this way ... but we will see.
Later edit (the next night): it didn't work that way ... but I found a different way, which did work ... eventually ...
(as you may now be able to see - this blog has a fancy background ... unless you are reading this post a while after I wrote it/edited it and I have done something else to this blog instead - after all - it is called "Testing, testing ... 1 ... 2 ... 3" for that very reason!)
