The positive thing is that now the search engine is probably better than Geoff's one (allowing searches for a given day as Geoff's does but also a range of days, and allowing searches without any nationality specified).
The very positive thing is that even if all links to a given war dead page have changed, the old link will be redireted to the new page.
Example: il you have stored somewhere
(a training casualty in Canada) and clicked it, you ended on the new page:
that is the good guy in the new format.
I won't comment the colors...