Could you please tell me how to achieve this effect?

Currently, I have achieved the display of two colors in the same column, but the number that pops up when touched is the total. I want the numbers of the two colors to be displayed separately, as shown in the figure. How should I do it?

The issue provides only an attached image and a description of separate values for two colors in one column; it names no source file, test, or entry point. First determine which chart and tooltip APIs are involved, then define the expected separate values and add coverage before assessing the implementation.

Written by the indexing model from the issue text.