Synchronize the color of the line connected to the spot and the chart line.

I've matched the colors of the chart like this, and I succeeded in synchronizing the colors of the chart line and bottom area, but how do I synchronize the colors of the Spot and the lines connected from Spot to the X-axis? Also, How do I change the color of the value shown in the Tooltip when I click Spot?

No file, test, or entry point is named. Start by locating the line-chart spot, axis-line, and tooltip styling APIs, then compare them with the existing chart-line and bottom-area color configuration; done means confirming whether these colors can be synchronized and documented or supported consistently.

Written by the indexing model from the issue text.