I would like to change the background color of a column or resource such as the "ALL NODES" list, so that this is more viewable from a large screen tv. IE: The icon is green and the text is small, so I would like to have a green icon and then white text over a black background.
You have a couple of options. If you're familiar with C#, you might be able to customize the colors by finding and editing the resource file. Your other option would be to create a custom CSS file and apply it using the Color Scheme option in the web console.
The first option will be more difficult but allow you to customize that particular resource. The latter option will be much easier to implement but will affect all resources.