Relatively simple concept. I had a feeling it had already been suggested but a search for highlight turned up nothing
Basically a tool which when you run, everytime you view a folder in windows, the background colours of filenames are adjusted if they have been created recently.
Maybe if the creator was really keen they could make it customisable but as an example.
File created today: Green Background Colour for file name text
past yesterday, within 7 days: Orange
May not seem useful to some but hey sometimes it's handy to find out files you've recently downloaded & see whats new etc