In the app store is there any easy, ideally universal way to tell whether an app supports Retina graphics? A great deal of apps have a What's New entry that says "Added Retina Support" or "Support for New iPad" but as time passes that won't be a good measure.
I've noticed some apps have lower-res thumbnails (I can only tell by looking) on my Homescreen but the App Store icons tend to look perfectly clear. Of course running the app I can usually immediately see if it's the old resolution, but I'd like to be able to tell before I download (or purchase!) the app.
How can I tell if an app is Retina enabled from the app store?