Enum that specifies the type of change to the [StickyNote].
| Title | Specifies that the title of the [StickyNote] has changed. |
| Contents | Specify that the content of the [StickyNote] has changed. |
| Theme | Specifies that the visual theme of the [StickyNote] has changed. |
| FontSize | Specify that the size of the font used by the [StickyNote] has changed. |
| Position | Specify that the position of the [StickyNote] has changed. |