Switch X-axis mini chart color to match native

Please switch the color for the selected area of the X-axis mini chart.

It's now grayed out, opposite the native solution where the selected/viewable area is white.

Also more  intuitive with grey to show non selected area.

Below is the same graph, and the mini chart set marker to the same position.
But completely different results, which makes it hard to implement bar/line/combo charts together with native objects.