Change #1059469 had a related patch set uploaded (by Aude; author: Aude):

[mediawiki/extensions/Chart@master] Support showSymbols chart definition option

https://gerrit.wikimedia.org/r/1059469

@aude

The Graph lua module also allowed showSymbols to be an array of numbers, representing symbol size of each data point

This option was introduced to be able to define separate size of symbol for each of data series (not each data point).
Additionally for each data series it was possible defined linewidth and symbol shape (same way as for symbol size).
All those features seems to be possible in eChart. Please see my example here.

Please also see graph template examples on beta cluster in template documentation page, template test page and this example . Graph extension still works there, Vega library was there updated to v5.* and also graph module.

Change #1059469 merged by jenkins-bot:

[mediawiki/extensions/Chart@master] Support showSymbols chart definition option

https://gerrit.wikimedia.org/r/1059469

@Pietrasagh For the initial demo, we are limiting showSymbols to true and false, but will consider if/how we can support the other options for symbol size, line width etc.

Here is the task for the symbol size and symbol shapes option in the chart definition:

https://phabricator.wikimedia.org/T372002