Is the title an oxymoron? It is not a dark cake, I'll grant you, but in dietary terms it wouldn't pass any sort of calorie controlled test. But it's the name of the recipe in any case, and it tastes good.
I think making interestingly shaped cakes adds a bit to the process. Don't ask me why, it's just a fruit cake, but the moment it pops out of the tin is special. Mostly because it's a relief it hasn't stuck to the interior and fallen to bits!
I have a few interesting tins now, the best of which is a somewhat seasonal affair, but has been used every year since I bought it. And on that basis was worth the silly amount I paid for it. I was seduced again the other week, in a local cookware/crockery shop. They had a sale on, and I was drawn in.
There, on display, with one third off, were some Nordic cake tins. The rest is history, but you'll have to wait a little longer to see that one as, once again, it has a bit of a seasonal theme to it, though could be used on on more occasions than a fir tree tin...