todo.txt

- Treeview
    - Object make invisible
    - Object lock

- Objekte spiegel, drehen

- Rectangle new
    - create via mouse drag

- Add the ability to add sound and voices.

- Plugin for animated objects (tweens, videoscribe)

- Plugin for sprites

- animationScene paste should also copy plugin items and vector attributes

- Sans Serif bold has no BOLD only Obliqe and Italic

- Scene FPS should be visibel in timeline

- effects like shadow

- ask to save animation closing the pogram or loading / new

- draw select rect when opacity = 0

- Generating a GIF producesa blank border around the image.