rtv, what "yes" (screenie?) button are you talking about?
Sorry - just remotely tested with 4:3 but it should give you the idea:
EDIT: I have a strong guess that the less bright color only results from the fading. Therefore the low resolution is the true cause for that. However - as it is almost working nicely on PAL TVs you might consider increasing the dialog's button width just a very little bit so the text fits again?
Germany