There's a while I think about it. The cuttings are actually not the best as you could find. I looked other forums, like PHPbb. They use more images to their designs. It makes it more complete and proffessionnal. The principal is the round corners. They can add an end at their title images. Forumotion can't. Look:


The pink is the cutting now used.

Now, what could make special corners:


Blue is the cutting.

It would be an option.

What do you think about it ?