- Fixed a bug that the scroll of the collision form editor windows
was not working.
- Fixed a bug that the graphic of the collision form editor and the
collision form preview were not working for objects that had been
scaled up or down.
- Changed the way that points are saved to be relative to the
image, instead of the relative layout. This fixes the problem os the
preview being shown wrong. Also will be useful when the exporting
feature is rewritten.