I'm not sure about the category, sorry if is not the good one.

After a fresh install of fedora kde i have set some widget into my top bar.

Everyting is ok but after a reboot i have some horizontal padding, how can I configure them?

Just in case : the picture show the padding when the edit mode is active normally the padding is not transparent

screenshoot here : https://i.stack.imgur.com/Q9NaJ.png