I would like the calendar to be radius corner 3 px and white with blue outline: #0092cf when hoover over the dates the square gets to be light grey

can I change the calendar weekday to start on monday (European way)... and not that important but if possible; how to change the months and days word to be in norwegian: January to Januar and TUE to TIRS etc.

I have like best the layout from the calendar form from widget: Date picker

The only way to change the starting day on the calendar for now would be downloading your form's full source code and edit the javascript which handles the "Date Picker" widget.

The same solution for translating the wordings.