Make sure you hear about the Microsoft desktop theme, which is known as the Royal, which is better than the original one. Well, Microsoft decided to create his dark brother too: Royale Noir.
You'll set up for the first time that you realize that it is a lot different from the rest of the theme you tried. This is a dark theme where the main color is black.
Although you may find it difficult to create a theme that is not bright and colorful, you will realize that the absence of colors will allow you to focus on the contents of the window and you will enjoy the maximum time that your time in contrast to your computer screen.
Do not be brave, install the Royal Noir and give a dark touch to your desktop.