Tooltip custom plugin

[gerritwitkamp]

Maybe I'm missing something, but how can I support multilanguage for the button's tooltip of my custom plugin?
In the examples I see this.title is set in the add method of the plugin, that doesn't seem to work for me. I also tried to extend the language object which is used as lang property in the options argument of SunEditor.create, unfortunately that didn't work either. I scanned the source code, but I did not found a line of code where the tooltip should be translated (_createButton). Seems like it's just using the plugin name.

How can I fix this?

The only I get around is using the onLoad event, like:

instance.onload = (core, reload) => { core.context.element.toolbar.querySelector('[data-command="foo"] .se-tooltip-inner .se-tooltip-text').textContent= 'bar'; }
Thanks in advance.

Version

2.46.3