Please revert bar chart colors

On the focus summary bar charts, opal used to show the color for each hour—solid green for an hour with no interruptions, for example. Now it shows a gradient for each hour. This is a pure loss from an informational perspective; the bar chart is supposed to tell me how I did each hour, but now it’s also telling me how I could have done that hour. But I already know that; I have not forgotten the red-green gradient, thank you, It is also a downgrade from a design perspective: my eyes perceive the bar chart as a block of white after a few seconds. Now it conveys no information whatsoever! I see absolutely no benefit to this change.