Features:

- all pictures in the folder will be processed automatically

- can handle large pictures and keep them in high resolution

- each picture's display time can be adjusted to be between 0.1 and 10 seconds 

- toggle-able sound and visual progress indicators

- very fast processing speed 

- add option to select forever loop playing or loop by input times

- forever loop playing user alert added

- add option to display GIF in Safari as soon as it's generated 

- more by dragonBTV updated

- recommended saving name and saving folder option added

- generated GIF file can be saved anywhere in any file name

- menu item added for User Alerts Resetting

- user tips updated

- app's interface modified

- new Preferences menu of File Saving Options

- user customizable file saving folder

- user customizable file saving prefix

- handle file name automatically on user prefix mode 

- performance improved under OS10.10

- more by dragonBTV updated

- fully re-coded Sandbox ARC version for macOS Sierra 10.12

- updated to macOS Sierra 10.12 and still compatible to OS10.7 and above

- interface adjusted

- all deprecated function are replaced

- all file operation are changed to Sandbox compatible

- app menu and dock menu rearranged

- icon modified 

- change color of all popup alerts into white

- alert for destination (output) folder selection modified with detailed explaining