Can I configure XFCE or LXDE to look like this GNOME panel?

Solution 1:

This answer is for XFCE

For the menu, add the whiskermenu plugin. You can change the icon to make it look like a grid.

For the dock, install xfce4-docklike-plugin, and add it to the panel. There is a PPA, so that you won't have to compile it yourself.

sudo add-apt-repository ppa:xubuntu-dev/extras
sudo apt update
sudo apt install xfce4-docklike-plugin

You can add a system monitor plugin to the panel (you can download prebuild .deb packages from here). Plugins for calendar, network, sound, and power are already available in XFCE.

Finally, change the color of the panel in the panel settings.