How can I display different icons according to file extension?

[LucasHrqc]

Hello there!

First I'd like to thank you for this plugin, it helped me a lot to build a file manager!! So, the thing is...

I'm trying to find a way to display different icons according to the file extension.

As seen in the image above, I know it's possible to add classes, but they're added to every single icon of the tree, which makes it hard to dynamically display the icons.

Thank you for your att!