LaTeX borders around hyperref links and references

As I am currently writing my thesis and stumbled around the problem of borders around any reference (or link) inside the generated .pdf document, I first came around with an solution like that:

Which worked by setting all borders of hyperref to the color of white and therefore on a white document to an invisible color.

But later on, especially when programmatically writing tree graphs with background colors, this solution didn’t work anymore.

Which is why I needed to change the way of usage to:

instead of the previous block. Now there is no disturbing border anymore and teXing got a little better 🙂