// instaluj qt dark theme

sudo apt install adwaita-qt

//pouzi dark theme

QT_STYLE_OVERRIDE=Adwaita-Dark wireshark

ALEBO

wireshark -style Adwaita-Dark

export QT_STYLE_OVERRIDE=Adwaita-Dark

do .bashrc alebo .zshrc a mas to nastaven pre shell

alebo

sudo nano /etc/environment

export QT_STYLE_OVERRIDE=Adwaita-Dark

a je to pre cely system