I spent some days fiddling with the CSS stylesheets and I created a new design for the pages. For a change now it is more colourful, although I do not dare to use something different from black over white for the texts. I will call the new design as Toxic, hopefully not because people will get sick by visiting the pages but because the X icon resembles to the toxic sign.
( In fact, I was wrong about this. The black cross over an orange background means harmful material and not toxic. I will keep the old name, because harmful does not sound so cool ).