If you are a git user, you can install the theme and keep up to date by cloning the repo:
git clone https://github.com/dracula/ditto.git
Download using the GitHub .zip download option and unzip them.
Copy or move Dracula.xml to Themes folder, located at C:\Program Files\Ditto\Themes or inside the Themes folder if you use the portable version.
- Open Ditto by clicking its icon in the system tray or by pressing its Hot Key which defaults to Ctrl+` – i.e. hold down Ctrl and press the back-quote (tilde ~) key, and go to its settings (click on the menu icon ⋯ of the lower right corner and click on Options.)
- Within the General tab, locate Themes and select the Dracula theme.
- Finally, click on OK.