When the selection is active is a finder window, i.e. the file is clicked to show it’s selected, the dark blue background makes the text hard to see since the text is also black. In the regular Finder, the text is white against a blue background, allowing you to determine the selection is active and not another folder color. See screenshots.
It will still work. 2.0 may be a paid upgrade but I would have to find some significant feature to be it worth upgrading. It is not going to happen anytime soon.