I'd like to accomplish two things:
- I want to change the color on the "checked out" arrow from green to red to increase visibility.
- I'd like to know how to modify the icons associated with different extensions. For instance, all .pdf files currently have a blank white page for an icon and I'd like to make it something more recognizable.
Do I need to do these things programatically? Are there image files buried somewhere in the back end that I can just modify and save? Do I need to get cozy with some CSS?