Problem:
From the chart widget, the bar color is selected for each of the data series. For example, "deadline passed", "deadline today", "deadline in 2 weeks", "deadline more than 2 weeks", "no deadline" are set with different color.
When one of the bar of the series is not displayed on the chart as there is no data to display, the previously selected color of the bar gets lost.
When the series comes back as there is data to be displayed, the color of the bar is not the color that was selected before and is a random color that the system selects.
Therefore, some series shows duplicated color which degrades the legibility. With this problem, it is not possible to use the chart widget for professional use.
Solution:
update the system to keep the color of the series that are manually selected from the chart widget.
Impact:
More users will use the chart widget.