Remove attribute style to normal

[md-rifatkhan]

I know there is a QuillToolbarClearFormatButton available to clear styles or formats, but how can I do it programmatically? For example, after activating h1 with quillController.formatSelection(Attribute.h1), how can I remove its style and revert it to normal text?

[md-rifatkhan]

Solved with

void removeSpecificFormatting(Attribute attribute) {
    controller.quillController.formatSelection(Attribute(attribute.key, attribute.scope, null));
  }