I like dark themes, and I am also really picky about what I have to stare at every day, for hours. This theme is much improved and refactored from Dracula of Jacse's theme pack.
You need to install the "Brackets UI Theming Enable" plugin to enjoy the full Dracula experience.
Click the Lego brick icon in the right toolbar and search for "Dracula" in the Themes tab of Brackets.
Enjoy!