... , traditional chinese brush, high light pen( semi-transparent color for remark or anotation), magic pen ( turn handwriting figures like ... .8. Handwriting Recognition.9. Variety pen size, color, type for choices. Redo and undo function.10. main menu: save, ... Screen cover.15. Background for teaching: black page, green page, letter paper, football field, basketball field, Staves for music and users can ...