Auto save, how the canvas moves, privacy, and the default PDF viewer.
Application behaviour and how the canvas feels.
Canvas
Zoom Speed - how far one wheel notch travels.
Pan Velocity - how fast a drag moves the sheet.
Active Opacity / Inactive Opacity - how solid the sheet you are working on is against the others around it. Turning the inactive one down is what makes a busy canvas readable.
Working
Auto Save (1 Min Delay) - saves the project a minute after you stop changing it.
Auto Area Holes - area holes are created automatically. See Editing drawings.
Privacy
Usage Analytics - share anonymous usage data.
Crash Reports - automatically send crash reports.
Both are yours to turn off, and neither carries drawing content.
Language
Choose the display language, or leave it on the system default.
File associations
Set as Default PDF Viewer makes Windows open PDFs here by double-click.