You have seen Sketch Guru - Handy Sketch Pad?
https://play.google.com/store/apps/details?id=com.doodlejoy.studio.sketcherguru&hl=es_419It has an option
"Movie" mode to playback sketch like a small film.
That show each pencil movement (is like a undo-redo list that's played, saved in a script file).
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There's another bug in other file open dialog of 'Image List'.
I can't open any file stored in user Pictures folder. Always throw 'Error: File not found!'.
Remember that Pictures folder has a real path and a 'visual' path. One is, for example:
'C:\Users\User\Pictures'
And other is the translated, that's shown
'C:\Users\User\Mis imágenes'
(With the first two seems that there's no problem)
And other, shown when you acces the folder via explorer 'Library' shortcuts
'Bibliotecas\Imágenes'
No idea, because I can open files in 'Documents' Library folder with no problems, only the 'Pictures' Library folder has that.