ATF2PNGT is a tool using Starling to export images (PNG files with transparency) from ATF textures.
How to use it:
1- Launch the application (Flash Builder: CTRL+ F11 / FlashDev: CTRL+ ENTER).
2- Choose the directory where your ATF textures is located.
3- Choose a directory where you want save your PNG files.
4- Wait until the application quits.