Migrated from flutter/flutter#81778
This issue was originally filed against the official flutter_markdown package.
The package has since been discontinued and ownership transferred to flutter_markdown_plus.
Please provide a way to set margins for block elements so that a H1 can have more spacing than a normal P. One way to achieve this would be a allow using a custom MarkdownBuilder which currently is hardcoded in _MarkdownWidgetState, the private "state sibling" of MarkdownWidget. The builder adds the blockSpacing in _addBlockChild which, if the tag would be passed to this function, could vary the added spacing.