For reference you add a URL to a slide. But the text changes color, an underline is added, and in general is ugly!
You have options to bring back the aesthetics of your slide – here is the easiest. Select the text box and right click on the hyperlink and choose REMOVE HYPERLINK.
This strips out the active link programming and changes the URL into plain text. It will not be able to be clicked as an active link after this. The result is happy, beautiful, text once again!
– Troy @ TLC