Open the Extensions view in Visual Studio Code by clicking on the Extensions icon in the Activity Bar on the side of the window or by pressing Ctrl+Shift+X.
Search for "Echo Theme".
Click the "Install" button.
Once installed, click the "Set Color Theme" button or go to the Command Palette (Ctrl+Shift+P) and select Preferences: Color Theme, then choose "Echo" from the list.
Customization
If you want to customize the Echo theme to better suit your preferences, you can edit the themes/Echo-color-theme.json file directly. This file contains all the color settings and token colors used by the theme.
Contributing
If you find any issues or have suggestions for improvements, feel free to open an issue or submit a pull request.