For some reason, the drawables in my app are blurry. This is especially apparent in menus when I put built-in system icons side-by-side with icons from my project’s res folder.

Here’s an example. The left envelope icon is in my app’s drawable-hdpi folder. It is scaled down, for some reason. The right one is using the built-in Android resources. As far as I can tell, they are the same 72x72px file–I copied the png straight from the drawable-hdpi folder in SDK to my project’s drawable-hdpi folder.
Is there some special setting for drawables in my app that I’m missing?
Try adding the appropriate
supports-screenselement to your Android manifest, and make sure you have amin-sdkof at least 4. Also make sure youruses-sdkelement is nested under themanifestand not under theapplication(if it’s in the wrong place or missing, your app will still work but can cause issues with compatibility-related code like resource scaling, and will prevent uploading to the market with an obscure error… it can be a tough one to track down).