Far be it from me to suggest that websites should not be colourful or indeed aesthetically pleasing (or "pretty" if you prefer), but I cannot help but notice the dangers of ignoring colour blindness. Without any wish to continually fault My.WBS, it does bring many design questions to my attention. See the example below:
1. Red on blue is used to show a new message, but to my understanding with such low contrast between the two colours, surely that text may appear near invisible to some users who suffer from colour-blindness?
2. More applicable to users generally, we have brown on brown for previously visited resources. Contrast is low to everyone, making it extremely difficult to read at a distance.
Agreed, colour can be used to help highlight the different types of posting, but it does not need to be the background colour. Options available could simply be a coloured box, or the block to the left (e.g. "13.35 Resources") in the colour.
Again, more things to be wary of in my new portal design!