-Function addition / adjustment
-Adjusted background setting window UI
-Adjusted to open the same folder if there is a selected file in the file selection dialog
-[PRO] Added a function to set video files as background
-[PRO] Adjust the degree of bending of all fingers in hand shape standby
- Bug fixes
-Fixed camera angle recovery not to depend on loaded avatar
* The camera angle saved in the previous version changes slightly.
-Fixed so that the scene camera does not move when moving the mouse wheel on the selection dialog.
-Fixed incorrect location and orientation of light sources
-[PRO] Fixed to be able to change the change speed of hand shape.
-[PRO] Fixed bending of thumb in hand shape.