builder: (context, child) {
                return Theme(
                  data: Theme.of(context).copyWith(
                    colorScheme: const ColorScheme.light(
                      primary: Colors.white,
                      onPrimary: Colors.black,
                    ),
                    textButtonTheme: TextButtonThemeData(
                      style: TextButton.styleFrom(
                        foregroundColor: Colors.black,
                      ),
                    ),
                  ),
                  child: child!,
                );
              },

This is my code. And I want to make the header white. But the button is not visible when the header is white. What should I do?

CodePudding user response：

The today color is colorScheme.primary which is white, and we can't see.

    final Color todayColor = colorScheme.primary;

   .....

        } else if (isToday) {
          // The current day gets a different text color and a circle stroke
          // border.
          dayColor = todayColor;
          decoration = BoxDecoration(
            border: Border.all(color: todayColor),
            shape: BoxShape.circle,
          );
        }

You can check the calendar_date_picker.dart

For now, I can think of creating a local file and customize the color, or changing picker color.