Y axis scale

[Paul-Reed]

Noticed that the uppermost value in the scale is always missing.
For example, in the screenshot below, the peak graph value is 3216W, yet the y-axis scale stops at 2000W instead of 3000W.
The mean average of the feed value between 14:33 & 14:44 was 3080W.

Also apparent with @glynhudson screenprint;

What is the peak value??

[danbates2]

Just noticed this.
Related:
Y axis should have enabled as an option, lines on the background so the graph is more readable.
I simple can't know the low, night time energy usage through this app, because I can't match up the graphing to an actual value :/

[arc12]

A more significant defect with the y axis, from an data visualisation good practice point of view, is the way 0 is not at the bottom. The filled area beneath the curve absolutely should not extend to negative values, as it does now. It should be easy to see, for example, that a period of 400W consumption next to a 200W period is twice as high; there should be a proportionality between the visual height and the power consumption for optimal interpretability.
I contend this is really a defect, not an enhancement.