Hello, it seems “Reset default setup values” doesn’t work properly. When you click the menu command, there are some options can not be reset to default settings:
Misc. - Timestamp
Misc. - Recent Files
Misc. - Auto Back Interval
Misc. - Browser Command
Misc. - Visually Linear Color Selection
Misc. - Restrict Real-Valued Handles to Top Right Quadrant
Misc. - Scale New Imported Images to Fit Canvas
Misc. - Enable experimental features (restart required)
The others work fine.
Tested versions: 0.64.1, development snapshot and git master.