White IS a colour!

After numerous complaints [looks@truck] I have butted [heh, I said "butt"] the banner snuggly into the corner. It [the space around the original banner] was never a mistake, it was a design decision at the time - but it seems that didn't fly. A new banner has been created to keep a) truck's level of annoyance and b) Phet's level of interest - at an optimum level.