Spotify's Desktop interface is a bit out-dated. Let's add some custom skins with Spicetify!
https://www.youtube.com/watch?v=ucFVg9jnXbw
Windows
1. Download and Install Spicetify

Download the latest 'windows-64' zip file and extract it:

Go into the Extracted Folder and run 'spicetify.exe' once (nothing will happen)

2. Download and Set a Theme

Look at the Wiki Page to choose a Theme you like:

Extract the zip and copy the folder for your theme of choice:

Go to your Personal Folder, then '.spicetify', and then 'Themes' and paste your theme folder there:

You will need to show hidden folders