Just a few suggestions for improvements to the inline HTML rendering in the markdown editor:
1. Not sure if this one would be considered a feature request or a bug, but style="background-color: color" should render as background color instead of text color. Currently both style="color: color;" and style="background-color: color" render as text color in the editor (works as expected in the viewer) :
This would allow for easy custom highlight colors in the markdown editor
2. Support <ins> syntax for underlined text, currently this doesn't render as inline HTML in the markdown editor:
While you can use ++insert++ to get underlined text in the markdown editor, its a somewhat obscure syntax and inline HTML is more widely supported
Also, the Rich Text editor uses <ins> for underline, so this would allow better interoperability between the editors.