Thanks to John M McIntosh for the original Scratch Viewer and Squeak/iOS integrations.
Thanks to the Scratch Team at the MIT Media Lab for open-sourcing Scratch 1.4.
Thanks to the Squeak/Scratch community members for improving the dynamic programming environment.
Also thanks to the third-party library authors for open-sourcing useful libraries.
TimGM6mb.sf2 is a public domain SoundFont by Tim Brechbill. Thanks for the great work.
Some of button icons(flat-close.png, flat-camera.png, change-camera.png, pinchIn.png) were processed from Font Awesome by Dave Gandy - http://fontawesome.io. Thanks for the great font.