How to customize desktop

I'm very new to Linux and am having trouble understanding how to customize my desktop. I would love to have my desktop look like an image provided below, but I'm confused how to do so. Is that icon bar a desklet? What is it that is needed to add this to my desktop?

1 Answer

Here are some things you can do to get a desktop similar to the one in the screenshot.

1. Move Ubuntu dock to bottom from left: follow this Q&A

2. Make the dock flexible instead of fixed-length: Run the following command in Terminal

   gsettings set org.gnome.shell.extensions.dash-to-dock extend-height false

   (source)

3. Install and use Arc theme: The application theme in the screenshot looks like the popular Arc theme. Install it first by running

   sudo apt install arc-theme

   Then install (GNOME) Tweaks by running

   sudo apt install gnome-tweak-tool

   Finally, launch Tweaks and select Arc for application theme in Appearance section.