Widget Calories question

Hi all, in the widget Calories I saw today at 10am the following data: calories: active 49, resting 763, total 812, the forecasted total for today is 1887.

Pressing the DOWN button, I see a graph with the first line from the bottom should value 750, but I see the blue box just below 750 and not upper as it should be, as it's 763. 

and, what represent the red peaks?

I tryed to upload the picture but without success!

If I have well understood the scale should be x100 calories.

thanks for any feedbacks