I wrote a toolbar button plugin for the alloyeditor that works good on internal control panel alloy-editors such as in the blog edit view. Unfortunately, the button is not visible in the content-page editor (rich text fragments). My EditorConfigContributor extension point populateConfigJSONObject does not get invoked. I think it could be due to a wrong editor.config.key setting.

Does someone know which @Component properties I have to use, to properly hook into the EditorConfigConfiguration for the fragment rich-text-editor in the content-page edit area?