This is a simple Theme for elFinder that changes only the Styling and Icons, the theme doesn't interfere with elFinder's Functionality.

To add, simply copy the theme-bootstrap-libreicons-svg.css to elFinder's css folder, and copy the SVG Icons to elFinder's img folder.

Then include the css file after elFinder's css include. This theme simply override's elFinder's classes to look more like Bootstrap.