title: android png optimization
body: <p>I have an app that using alot of .png fils, so to reduce app size I used PngOptimizer to optimze them.  I was happy with the results and the file size of the png's went from alittle over 1mb to 300kb or so.  but for some reason the app size only went down about about 100kb.  doesn anyone know why?  I would really like the file size reduction that I saw in my png files to carry over to my app size.  please help</p>