StackedAreaChart has no color anymore

[stockiNail]

Thanks for your work.

I'm bumping Charba from version 3.3-gwt to 5.1-gwt. After resolving the breaking changes, the app works fine but the area in the StackedAreaChart has no color anymore even if I call setBackgroundColor() on the dataset. Is it because it's not anymore the correct way to set the area color, or is it a bug? (I can open an issue in that case if you prefer).

Thank you.

Originally posted by @salmonb in #68 (comment)

[stockiNail]

@salmonb I have tested locally (and also in showcase) and it sounds working.

Could you provide me the GWT code in order to reproduce locally?

EDIT: Showcase: https://pepstock-org.github.io/Charba-Showcase/index.html?gallery=area

[stockiNail]

@salmonb I think I found the issue. CHARBA 3.3 is leveraging on CHART.JS 2.94 where the default value of fill option was true therefore you didn't have to set it.
But in CHARBA 5.1 CHART.JS 3.7.1 is embedded and as of CHART.JS version 3, the fill option changed the default to false.

I think this is the reason why your stack area is not filled. Anyway it could be better that StackedAreaDataset class will set fill option to true by default. I'll add it in next days.

In the meanwhile, you could set the fill, as following: dataset.setFill(true); or dataset.setFill(Fill.ORIGIN);.

Let me know if it works.

[salmonb]

I was about to provide you the code but you found the problem even before!

The background color is back indeed when I call dataset.setFill(true);

Well spotted, thank you!

[stockiNail]

Fine! I want to add the fill option to true in the StackAreaDataset in order to avoid to set the fill option, being an area chart.
After that, I'll close the issue.
Thank you

[stockiNail]

@salmonb Pushed the setting of initial value to true of fill option in the StackAreaChart in order to avoid to set separately. Available in the master and then in next release.