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/qtcreator.git
Download using the GitHub .zip download option and unzip them.
- Move the
dracula.xmlfile to~/.config/QtProject/qtcreator/styles. - Go to
Qt Creator -> Preferences..., click in theText Editortab, and selectDraculain theColor Scheme.