How to configure navigation layout sidebar so that it shows only the icons, not the related titles

Hi,   I have a problem where my sidebar shows a blink of the related navigation page title in addition to the icons as you can see from the picture below. I want to configure it so that it shows only the icons. Any solution to this? Thank you for your answers
1 answers

Just remove the names (caption) in the navigation. Maybe good to add an alternative text for the users though.

Then yoou will see the icons only with a hover text indicating what the icon represents