Squirrelsong Light and Dark Theme for Sublime Text Installation from GitHub Clone the repository or download as a ZIP archive. Unzip the files. Select Preferences → Browse Packages to open your Sublime Text packages directory. Copy the themes/Sublime Text/Squirrelsong Light or themes/Sublime Text/Squirrelsong Dark folder into your Sublime Text packages directory. Go to Preferences → Color Scheme → User and select the Squirrelsong Light or Squirrelsong Dark theme.